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Australian Weather Mailing List Archives: Tuesday, 18 April 2000 |
From Subject -------------------------------------------------------------------------------------- 001 Carl Smith [carls at ace-net.com.au] Latest MRF worth a look 002 Lindsay [writer at lisp.com.au] Highs and Colorado etc 003 Lindsay [writer at lisp.com.au] Latest MRF worth a look 004 Anthony Cornelius [cyclone at flatrate.net.au] [Fwd: [Lightning] Is this really the UK???] 005 Chas & Helen Osborn [hosborn at tassie.net.au] Cloud Seeding 006 Matt Smith [disarm at braenet.com.au] Cloud Seeding 007 "Ian Weller" [IYW at rbfb.tas.gov.au] Cloud Seeding 008 Jimmy Deguara [jdeguara at ihug.com.au] Cloud Seeding 009 Jimmy Deguara [jdeguara at ihug.com.au] Cloud Seeding 010 "Leslie R. Lemon" [lrlemon at compuserve.com] Cloud Seeding 011 "Leslie R. Lemon" [lrlemon at compuserve.com] Cloud Seeding 012 "John Woodbridge" [jrw at pixelcom.net] Interesting day in Sydney (Matthew Pearce, not Don) 013 Jimmy Deguara [jdeguara at ihug.com.au] A Stormy Question 014 "Keith & Jason" [kevans at kisser.net.au] TC Rosita 015 "John Woodbridge" [jrw at pixelcom.net] [Fwd: [Lightning] Is this really the UK???] 016 "David Croan" [wxbustchase at hotmail.com] Interesting day in Sydney (Matthew Pearce, not Don) 017 "Lyle Pakula" [remote at leski.com.au] Highs and Colorado etc 018 "John Woodbridge" [jrw at pixelcom.net] A Stormy Question 019 Andrew Wall [astroman at chariot.net.au] Cloud Seeding 020 Andrew Wall [astroman at chariot.net.au] Sydney April 14 DOPPER RADAR!!! 021 Jimmy Deguara [jdeguara at ihug.com.au] A Stormy Question 022 "John Woodbridge" [jrw at pixelcom.net] Interesting day in Sydney (Matthew Pearce, not Don) etc 023 "tony middleton" [anvil_industries at hotmail.co radars 024 wbc at ozemail.com.au (Laurier Williams) radars 025 "Peter Tristram" [petertri at midcoast.com.au] rain 026 "James Chambers" [jamestorm at ozemail.com.au] SE Qld T'storms & Showers 027 Anthony Cornelius [cyclone at flatrate.net.au] Night Showers and T'Storms Result in PJ Chase! -------------------------------------------------------------------------------------- 001 X-Sender: carls at ford.ace-net.com.au Date: Tue, 18 Apr 2000 00:35:44 +1000 To: aussie-weather at world.std.com From: Carl Smith [carls at ace-net.com.au] Subject: Re: aus-wx: Latest MRF worth a look Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Laurier. I think you mean TC Rosita currently N of Port Hedland, TC Paul is currently passing to the S of the Cocos Is headed towards Africa, so would have to behave in a rather radical fashion to cross the NW coast of WA! With 4 named SH TC's - Ex-TC Neil S of Suva, TC Rosita N of Port Hedland, TC Paul S of the Cocos Is, and TC Innocente further out in the Indian Ocean - it is easy to get confused. :-) Regards, Carl. >The 00z MRF run is worth a look -- probably worth framing if it all >comes true. The 12-hourly sequence at >http://www-pcmdi.llnl.gov/fiorino/wxmap/mrf/archive/2000041700/mrf.alltau.prp.a >usnz.htm >shows: > >1. TC Paul making landfall about halfway between Pt Hedland and Broome >late Thurs morning. MRF has been consistent with the trajectory, but >yesterday's run had it crossing the coast late Wed morning. > >2. A curious band of max intensity rain lying east-west through >central WA from Wednesday morning, and remaining virtually stationary >until TC Paul whisks it away to the SE late on Friday. Again, MRF has >been consistent with this feature, though it's hard to explain what >causes it -- possibly a low level convergence line in the moisture >band SEof the TC, though it's so far removed from the TC at first to >make that questionable. > >3. The ridge currently lying from under WA into W NSW gradually >rotating to a SW to NE axis by Friday morning with a 1036hPa High west >of Tassie by Sat morning ridging to the south, and a low of around >1000hPa east of Tassie, with an almighty gradient southerly between, >pushing the 540 thickness line up to the Murray Valley. > >GASP ignores Paul, but slowly develops a deep surface trough over WA >Tues/Wed, and gives heavy rain over inland SA Thurs to Sat as the >trough moves east. GASP also favours strong high development west of >Tassie at the weekend, with 1035 by Sunday and 1038 by Monday! >Although GASP doesn't like a low developing east of Tassie, it still >pushes the 540 line briefly into Vic on Sun morning. The 850 temp 2 >degree isotherm is up into central NSW by then, so check you have film >in the camera, Lindsay. > >NOGAPs rather unrealistically has Paul taking a week to get to >Karratha after a liesurely journey down the coast, but also features >the central WA intense rain band from midweek. It also develops a >strong high over western Bass Strait by Sunday, but shoots the cold >air northwards into the Tasman rather than over Victoria. > >JMA also has intense central WA rainband, but orients the weekend high >more WSW to ENE, keeping colder air farther south. > >ECMWF (no precip forecasts) is similar to MRF with the weekend high >and low west/east of Tas, but, despite taltalisingly having a cold >pool of <528 about 200km SW of Tas at 12z Sat, shoots it into the >Tasman rather than over us by Sunday night. > >While the details vary (apart from the WA rain, which is remarkably >consistent from model to model), the general trend is for a >substantial change in the weather for Tas/Vic/S NSW/S SA at the >weekend. I'll be at Phillip Island watching the bike races on Sunday >in the top row of an uncovered stand just above the Bass Strait >cliffline, so I'll be taking something warm :-> > > > > > > >-- >Laurier Williams >Australian Weather News & Links >http://ausweather.simplenet.com > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 002 Date: Mon, 17 Apr 2000 08:14:51 -0700 From: Lindsay [writer at lisp.com.au] X-Mailer: Mozilla 3.0 (Win16; I) To: aussie-weather at world.std.com Subject: aus-wx: Highs and Colorado etc Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Lucky you Lyle, lucky you. Well, the portents for a cold change next weekend are reasonable (Damn its hard to type whilst sitting on top of a 3 feet high milk can! I feel like Humpty Dumpty. We are painting, computer room is stacked with furniture). Keep in touch if you can whilst in the US, I'll try and post this year's snow chase photos to the group, well to the ASWA or something, like last year. Can't type anymore, I'm about to fall off...aaaaahh! Lindsay P. Lyle Pakula wrote: > > Hey Lindsay, > > I have noticed a slight shift in the high's to the north. I didn't want to > say anything and pull a jinx. It was about this time last year that I got my > first days snowboarding in up at Mt Baw Baw - let's hope for another strong > southerly buster! > > I have to hope for this stuff, I'm off to the US in winter, so I won't get > another southern hemisphere season. Though i'll spend a few weeks in NZ on > the way and then be in Colordao for quite some time - can't complain :-) > > Cya > Lyle > > - - ---==( lyle_pakula at hotmail.com )==--- - - > . > / \ . > /~~~\/ \ " No Friends On A Powder Day " > / \ \ > / \ \ > > ----- Original Message ----- > From: Lindsay> To: > Sent: Sunday, April 16, 2000 9:31 AM > Subject: aus-wx: Highs... and Welcome John > > > Hey, don't those highs look nice situating themselves a little further > > north just now? > > Almost (I said almost) looks like a winter pattern. I wonder if they'll > > stay there for a while? Maybe we might get at least a rain event out of > > this next front due in Sunday sometime. Might even get a bit chilly up > > our way. Saturday's event left us with 1mm of rain and a bit of wind - > > wow. > > > > Hey, looks like I've recruited another weather enthusiast from the > > tennis club. He's 18 and has asked me if I would take him on a snow > > chase this winter. His name is Adam and he said for me to say hello to > > you guys as he doesn't have an internet connection. > > > > And also, welcome John! Good to have you with us. :-) > > > > > > Lindsay Pearce > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > > with "unsubscribe aussie-weather your_email_address" in the body of your > > message. > > -----------------------jacob at iinet.net.au------------------------------ > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 003 Date: Tue, 18 Apr 2000 07:24:30 -0700 From: Lindsay [writer at lisp.com.au] X-Mailer: Mozilla 3.0 (Win16; I) To: aussie-weather at world.std.com Subject: Re: aus-wx: Latest MRF worth a look Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com I'll load up the camera today! :-) That young fella at tennis will be pleased if this comes off, he's very quiet but loves his his weather, especially snow. I've promised to take him on a chase this winter. Cheers, Lindsay (All painted out) Pearce Laurier Williams wrote: > > The 00z MRF run is worth a look -- probably worth framing if it all > comes true. The 12-hourly sequence at > http://www-pcmdi.llnl.gov/fiorino/wxmap/mrf/archive/2000041700/mrf.alltau.prp.ausnz.htm > shows: > > 1. TC Paul making landfall about halfway between Pt Hedland and Broome > late Thurs morning. MRF has been consistent with the trajectory, but > yesterday's run had it crossing the coast late Wed morning. > > 2. A curious band of max intensity rain lying east-west through > central WA from Wednesday morning, and remaining virtually stationary > until TC Paul whisks it away to the SE late on Friday. Again, MRF has > been consistent with this feature, though it's hard to explain what > causes it -- possibly a low level convergence line in the moisture > band SEof the TC, though it's so far removed from the TC at first to > make that questionable. > > 3. The ridge currently lying from under WA into W NSW gradually > rotating to a SW to NE axis by Friday morning with a 1036hPa High west > of Tassie by Sat morning ridging to the south, and a low of around > 1000hPa east of Tassie, with an almighty gradient southerly between, > pushing the 540 thickness line up to the Murray Valley. > > GASP ignores Paul, but slowly develops a deep surface trough over WA > Tues/Wed, and gives heavy rain over inland SA Thurs to Sat as the > trough moves east. GASP also favours strong high development west of > Tassie at the weekend, with 1035 by Sunday and 1038 by Monday! > Although GASP doesn't like a low developing east of Tassie, it still > pushes the 540 line briefly into Vic on Sun morning. The 850 temp 2 > degree isotherm is up into central NSW by then, so check you have film > in the camera, Lindsay. > > NOGAPs rather unrealistically has Paul taking a week to get to > Karratha after a liesurely journey down the coast, but also features > the central WA intense rain band from midweek. It also develops a > strong high over western Bass Strait by Sunday, but shoots the cold > air northwards into the Tasman rather than over Victoria. > > JMA also has intense central WA rainband, but orients the weekend high > more WSW to ENE, keeping colder air farther south. > > ECMWF (no precip forecasts) is similar to MRF with the weekend high > and low west/east of Tas, but, despite taltalisingly having a cold > pool of <528 about 200km SW of Tas at 12z Sat, shoots it into the > Tasman rather than over us by Sunday night. > > While the details vary (apart from the WA rain, which is remarkably > consistent from model to model), the general trend is for a > substantial change in the weather for Tas/Vic/S NSW/S SA at the > weekend. I'll be at Phillip Island watching the bike races on Sunday > in the top row of an uncovered stand just above the Bass Strait > cliffline, so I'll be taking something warm :-> > > -- > Laurier Williams > Australian Weather News & Links > http://ausweather.simplenet.com > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 004 Date: Tue, 18 Apr 2000 08:08:59 +1000 From: Anthony Cornelius [cyclone at flatrate.net.au] X-Mailer: Mozilla 4.72 [en] (Win98; I) X-Accept-Language: en To: Australian Weather Mailing List [aussie-weather at world.std.com] Subject: aus-wx: [Fwd: [Lightning] Is this really the UK???] Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Les and all, Surprising that nothing was posted on the aus-wx list! Can you shed any light on this Les, or any other of our UK friends??? -------- Original Message -------- Subject: [Lightning] Is this really the UK??? Date: Mon, 17 Apr 2000 07:06:23 PDT From: "steve sargent" [sarge_15 at hotmail.com] To: lightning at egroups.com Hi all, this I don't believe!!! The USAF Operation Weather Squadron have put out a Tornado watch for the south/southeast UK until 4.00pm BST. I have never seen this before in my life. I'm going outside for a cigarette! regards Steve S. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com ------------------------------------------------------------------------ Whatever you want, chances are you'll find it at one of the hundreds of sites in The PointClick Network--like Disney.com, eCost.com, FogDog.com and many more. You get paid as you shop and an additional 10% off any purchase, anytime. http://click.egroups.com/1/2994/3/_/118863/_/955980384/ ------------------------------------------------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 005 Date: Tue, 18 Apr 2000 08:50:13 +1000 From: Chas & Helen Osborn [hosborn at tassie.net.au] X-Mailer: Mozilla 4.61 [en] (Win98; I) X-Accept-Language: en To: Australian Weather Mailing List [aussie-weather at world.std.com] Subject: aus-wx: Cloud Seeding Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hello Everyone The cloud seeding aircraft flew into Strahan this morning. It is chartered by the Hydro Electric Corporation at a cost of $1million. The return, I believe, is around $20million in electricity produced. The aircraft seeds the clouds off the coast. Chas Strahan Tasmania +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 006 X-Sender: disarm at mail.braenet.com.au X-Mailer: Windows Eudora Pro Version 3.0 (32) Date: Tue, 18 Apr 2000 09:27:12 +1000 To: aussie-weather at world.std.com From: Matt Smith [disarm at braenet.com.au] Subject: Re: aus-wx: Cloud Seeding Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com What is cloud seeding ? Matt Smith >Hello Everyone > >The cloud seeding aircraft flew into Strahan this morning. It is >chartered by the Hydro Electric Corporation at a cost of $1million. The >return, I believe, is around $20million in electricity produced. >The aircraft seeds the clouds off the coast. > >Chas >Strahan Tasmania > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 007 X-Mailer: Novell GroupWise 5.5 Date: Tue, 18 Apr 2000 09:36:38 +1000 From: "Ian Weller" [IYW at rbfb.tas.gov.au] To: [aussie-weather at world.std.com] Subject: Re: aus-wx: Cloud Seeding X-MIME-Autoconverted: from quoted-printable to 8bit by europe.std.com id TAA23220 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Chas and all... We here in Hobart could CERTAINLY do with some cloud seeding here!!. >>> Chas & Helen Osborn 18/04/2000 8:50:13 >>> Hello Everyone The cloud seeding aircraft flew into Strahan this morning. It is chartered by the Hydro Electric Corporation at a cost of $1million. The return, I believe, is around $20million in electricity produced. The aircraft seeds the clouds off the coast. Chas Strahan Tasmania +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 008 X-Sender: jdeguara at pop.ihug.com.au X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.2 Date: Tue, 18 Apr 2000 11:05:48 +1000 To: aussie-weather at world.std.com From: Jimmy Deguara [jdeguara at ihug.com.au] Subject: Re: aus-wx: Cloud Seeding Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Matt, Just a simplified reponse from what I recall. Cloud seeding is where the put some sort of chemical (silver iodide) in the clouds that act as the nuclei for cloud droplets to grow on. This then encourages rain to increase. The catch is you need cloud almost ready to produce rain for it to be worthwhile in other words the correct temperature. This is unfortunately not available during extended dry periods and droughts. And of course, this program is occurring in a very wet area where there are useful clouds around. they do this in Victoria and Tassie mostly as far as I know. Alan Wilkie's book has a picture of a cloud seeding program experiment in 1947 so it has been around for a while. Jimmy Deguara At 09:27 18/04/00 +1000, you wrote: >What is cloud seeding ? > >Matt Smith > > >Hello Everyone > > > >The cloud seeding aircraft flew into Strahan this morning. It is > >chartered by the Hydro Electric Corporation at a cost of $1million. The > >return, I believe, is around $20million in electricity produced. > >The aircraft seeds the clouds off the coast. > > > >Chas > >Strahan Tasmania > > > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > > with "unsubscribe aussie-weather your_email_address" in the body of your > > message. > > -----------------------jacob at iinet.net.au------------------------------ > > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 009 X-Sender: jdeguara at pop.ihug.com.au X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.2 Date: Tue, 18 Apr 2000 11:09:32 +1000 To: aussie-weather at world.std.com From: Jimmy Deguara [jdeguara at ihug.com.au] Subject: Re: aus-wx: Cloud Seeding Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com HI everyone sorry but I meant to post a URL http://twri.tamu.edu/twripubs/WtrResrc/v20n2/text-1.html But of course there is a lot of information out there on cloud seeding or perhaps weather modification. There is aninteresting article on the weather modification involving snow as well but you must search for it in yahoo. I wonder if there are articles on the hail guns.... Jimmy Deguara At 09:27 18/04/00 +1000, you wrote: >What is cloud seeding ? > >Matt Smith > > >Hello Everyone > > > >The cloud seeding aircraft flew into Strahan this morning. It is > >chartered by the Hydro Electric Corporation at a cost of $1million. The > >return, I believe, is around $20million in electricity produced. > >The aircraft seeds the clouds off the coast. > > > >Chas > >Strahan Tasmania > > > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > > with "unsubscribe aussie-weather your_email_address" in the body of your > > message. > > -----------------------jacob at iinet.net.au------------------------------ > > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 010 Date: Mon, 17 Apr 2000 22:35:49 -0400 From: "Leslie R. Lemon" [lrlemon at compuserve.com] Subject: aus-wx: Cloud Seeding To: "INTERNET:aussie-weather at world.std.com" [aussie-weather at world.std.com] X-MIME-Autoconverted: from quoted-printable to 8bit by europe.std.com id WAA18689 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Chas from Strahan Tasmania wrote: > The cloud seeding aircraft flew into Strahan this morning. It is > chartered by the Hydro Electric Corporation at a cost of $1million. The > return, I believe, is around $20million in electricity produced. > The aircraft seeds the clouds off the coast. I will give a little background on this subject, as I understand it, from the perspective of the U.S. As I am sure many of you are aware, the plane releases an agent that causes glaciation to occur. Most often, silver iodide flayers are used in this country. The term glaciation is used in reference to supercooled water (water that is still in liquid form even though its temperature is below 0 degrees C) that is caused to freeze and become crystalline. The theoretical reason for this is that due to differences in vapor pressure over ice vs that over water, the ice crystals in clouds will grow at the expense of water and will convert more of the cloud water into precipitation than would otherwise occur. Thus, the theory has it that clouds left to their own 'devices' might not rain at all, but by applying seeding to the updraft, precipitation is formed (ice crystals grow and become snow which falls, capturing even more water by overtaking cloud droplets) and the updraft is invigorated due to the latent heat release when the water turns to ice. The falling snow then melts on the way down becoming rain which falls to the surface. That is the THEORY of how cloud seeding works. The problem is that virtually all the experiments devised and conducted (e.g., seeding some clouds and not others) have proven inconclusive, at best. Other experiments have shown and concluded that overall, there is no augmentation of precipitation at all. So, here, the scientific community as a whole has refused to endorse these efforts or even opposed them. The opposition has not helped the causes of science. Here in the US, it is not uncommon in the high plains of western Kansas, Nebraska, the Dakotas, and sometimes west Texas and Oklahoma, eastern New Mexico and Colorado, to find farmers collecting money and paying cloud seeders to make rain. The cloud seeders also claim that hail size is diminished during the same process, preventing hail loss to crops. (The seeding is said to cause "unfair" competition in hailstone growth preventing any hail from growing to large sizes.) These same cloud seeders will even claim that the seeding "prevents" tornadoes. Some of the farmers will claim that seeding works in augmenting precipitation and preventing damaging hail, others will simply go along just in case it might work, and a few will refuse to pay, insisting that it does not work. Interestingly enough, in the Russian and many of the communist block countries, they use radar to identify hail clouds (existence of Weak Echo Regions [WER] and Bounded WERs or BWERs) and they will then fire ground-to-cloud cloud seeding rockets into these storms to prevent crop damaging hail. (This is not endorsed in this country either.) Les ************************ Leslie R. Lemon Radar, Severe Storms, & Research Meteorologist Tel. 816-373-3533, 816-213-3237 E-Mail: lrlemon at compuserve.com +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 011 Date: Mon, 17 Apr 2000 23:34:49 -0400 From: "Leslie R. Lemon" [lrlemon at compuserve.com] Subject: Re: aus-wx: Cloud Seeding To: "INTERNET:aussie-weather at world.std.com" [aussie-weather at world.std.com] X-MIME-Autoconverted: from quoted-printable to 8bit by europe.std.com id XAA26514 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Thanks for this, Jimmy. The URL is great......biased to one side obviously, but great none the less. > HI everyone sorry but I meant to post a URL > > http://twri.tamu.edu/twripubs/WtrResrc/v20n2/text-1.html > > But of course there is a lot of information out there on cloud seeding or > perhaps weather modification. There is aninteresting article on the weather > modification involving snow as well but you must search for it in yahoo. I > wonder if there are articles on the hail guns.... ************************ Leslie R. Lemon Radar, Severe Storms, & Research Meteorologist Tel. 816-373-3533, 816-213-3237 E-Mail: lrlemon at compuserve.com +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 012 From: "John Woodbridge" [jrw at pixelcom.net] To: [aussie-weather at world.std.com] Subject: RE: aus-wx: Interesting day in Sydney (Matthew Pearce, not Don) Date: Tue, 18 Apr 2000 13:48:46 +1000 X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) Importance: Normal Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Ah Michael, Alas, also can I here in Brisbane, which is supposed to be in the 2nd most Thunderstorm frequented part of Australia after the Top End. John >snip You can count Wollongong's thunder days since September 1999 on 1 hand. Michael +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 013 X-Sender: jdeguara at pop.ihug.com.au X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.2 Date: Tue, 18 Apr 2000 14:08:40 +1000 To: aussie-weather at world.std.com From: Jimmy Deguara [jdeguara at ihug.com.au] Subject: RE: aus-wx: A Stormy Question Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi John and the list, Not disagreeing or agreeing, but the cloud feature was situated at the rear NW section of the storm and lasted some time. The hail did get to about 10cm around some central suburbs of Sydney but I think larger hailstorms were discovered in some of the Coastal suburbs later with the second major cell. There was certainly cold air aloft that day. www.australiansevereweather.simplenet.com/photography/photos/1999/0922jd01.jpg Take a look at all the photos on the day as well as Matt Smith's ones for the day. That may help in deciding the whole situation. There is no doubt that the circular base is part of some rotation and there was updraught into it. Jimmy Deguara At 15:58 17/04/00 +1000, you wrote: >Hi Matthew and others, > >This was an interesting day. My thought is that the NE movement of this >cell after it passed Parramatta may either be evidence a supercell, i.e., >becoming a left mover, or merely a response to NE seabreeze encountered as >the storm got closer to the coast which influenced the direction of >convection propagation. This latter explanation may also account for the >sudden intensification also noted. However, the question arises as to why >the weaker storm with which it collided, did not also change course. I seem >to recall that at maximum intensity 10cent piece sized hail fell in parts of >Ryde, certainly evidence of intense convection. > >It is interesting to note in the latter stages of the animation, that >subsequently a second cell forms behind the one in question, which is itself >an unusual event to say the least. This cell also initially moves East, >then as it gains strength tends NE as well (last frame or two). > >Looking at the two photo's this does not strike me as a wall cloud, merely a >small curved shelf cloud. > >Regards, >John. > >snip > >Subject: aus-wx: A Stormy Question > >Les Lemon and anyone else... > >I got talking to Jimmy this morning about a storm we had on Sept 22 last >year (here in sydney) , with regards to a possible wall cloud that developed >at the back end of the storm. This was an odd situation where 2 storms >actually merged (a strong one and a weaker one), dumping alot of rain in and >around >Sydney > >Here is a photo I took of the possible wall cloud : >www.sydneystormchasers.com/pictures/Matt/1999/09-22-99-08.htm > >A photo Jimmy took around the same time from the other side : >www.australiansevereweather.simplenet.com/photography/photos/1999/0922jd12.j >pg > >Jimmy suspects it was a wall cloud (he viewed it as well) and Andrew Treloar >(Head of Severe Weather in Sydney at the time) said the storm had >"supercellular characteristics". I was just curious as to what your thoughts >might be. Radar is below, as you can see the 2 storms merged and then moved >north east for a short period. > >Any comments would be appreciated by the both of us. > >Matthew Smith > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 014 From: "Keith & Jason" [kevans at kisser.net.au] To: [aussie-weather at world.std.com] Subject: aus-wx: TC Rosita Date: Tue, 18 Apr 2000 11:58:42 +0800 Organization: Karratha AWS X-Mailer: Microsoft Outlook Express 5.00.2919.6600 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all Looks like Port Hedland maybe in for a Cat 3 TC during thursday sometime unless Rosita increases in movement latest jtwc track has it heading there way after 24hrs from a S'ly track to SSE. http://www.npmoc.navy.mil/products/jtwc/sh2700.gif Just read that the BoM are going to issue a TC warning at 1pm between La Grange and Whim Creek with a Watch extending west to Dampier and east to Cape Leveque. Currently here in Karratha cloud is increasing with showers and storms likely tonight with strengthening winds expected tonight as Rosita moves closer to the coast. http://www.kisser.net.au/kevans/webcam/ Current images from our web cam http://www.kisser.net.au/kevans/weather/ Current weather obs http://www.bom.gov.au/fwo/IDW55W00.html latest threat/track map from the BoM http://www.npmoc.navy.mil/satimages/gmsc.jpg latest sat IR image http://207.133.112.37/gms5/austvis.jpg latest VIS sat image KARRATHA: Cloudy with some showers developing and the risk of a thunderstorm. NE winds. Maximum temperature: 33 UV Index: 10 [EXTREME] decreasing to 6 [HIGH] under cloud UPDATED PILBARA: Cyclone Watch is current for coastal areas east of Whim Creek. Showers and thunderstorms increasing over eastern and central parts. Some heavy falls and local flooding in the northeast. Fine in the far west. Moderate SE/NE winds. Outlook for Wednesday :Widespread showers and storms. ---------------- HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH AT 2305UTC 17 APRIL 2000 Corrected copy STORM WARNING FOR THE WESTERN AREA SITUATION Tropical cyclone Rosita central pressure 986 hPa located at 2200UTC Within 50 nautical miles of: Latitude fithteen decimal eight south [15.8S] Longitude one hundred and eighteen decimal seven east [118.7E] and moving south southwest at 8 knots. AREA AFFECTED Tropical cyclone causing 30/45 knot winds within 90 nautical miles of centre with rough to very rough seas, moderate swell. Winds within 30nm of centre expected to increase to 50/55 knots during next 12 hours with high seas, heavy swell. FORECAST At 1000 UTC 18 April 16.7 south 118.4 east 976 hPa At 2200 UTC 18 April 17.5 south 118.2 east 966 hPa Next warning issued 0500 UTC 18 April 2000 ------------ WEATHER PERTH BUREAU OF METEOROLOGY WESTERN AUSTRALIAN REGIONAL OFFICE Media: The Emergency Warning Signal should not be used with this warning. TOP PRIORITY TROPICAL CYCLONE ADVICE NUMBER 1 Issued at 7:00 am WST on Tuesday, 18 April 2000 BY THE BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH A CYCLONE WATCH is now current for coastal areas between La Grange [Bidyadanga] and Whim Creek. At 6 am WST TROPICAL CYCLONE ROSITA [severity category 1] was located 500 kilometres north of Port Hedland and was moving south southwest at 15 kilometres per hour and intensifying. Gales are not expected on the coast today but could develop later on Wednesday. Details of TROPICAL CYCLONE ROSITA at 6 am WST. Location of centre : Latitude 15.8 South Longitude 118.7 East. Recent movement : South southwest at 15 kilometres per hour. Central Pressure : 988 hPa. Wind gusts : 120 kilometres per hour. Severity category : 1 The next advice will be issued at 10am this morning. This advice is available by dialling 1300 659 210. ------------------- BUREAU OF METEOROLOGY WESTERN AUSTRALIAN REGIONAL OFFICE STRONG WIND AND GALE WARNING for coastal waters between Cape Leveque and Cape Preston. Issued at 10:55 am WST on Tuesday, 18 April 2000 SITUATION: Tropical Cyclone Rosita [990 hpa] located at 9am near 16.0 South 118.7 East moving south at 8kn. Between Cape Leveque and Bidyadanga : N/NE winds 18/22kn reached 20/30kn offshore this evening. Squalls to 45kn. Seas rising 2m. Swell 2m. Between Bidyadanga and Cape Preston: 015 E/NE winds 18/22kn reaching 20/30kn inshore tonight and 25/35kn offshore From: "John Woodbridge" [jrw at pixelcom.net] To: [aussie-weather at world.std.com] Subject: RE: aus-wx: [Fwd: [Lightning] Is this really the UK???] Date: Tue, 18 Apr 2000 14:11:46 +1000 X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) Importance: Normal Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Maybe "Tornado" as in aircraft... :) >snip Hi Les and all, Surprising that nothing was posted on the aus-wx list! Can you shed any light on this Les, or any other of our UK friends??? >snip Hi all, this I don't believe!!! The USAF Operation Weather Squadron have put out a Tornado watch for the south/southeast UK until 4.00pm BST. I have never seen this before in my life. I'm going outside for a cigarette! regards Steve S. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 016 X-Originating-IP: [203.0.101.2] From: "David Croan" [wxbustchase at hotmail.com] To: aussie-weather at world.std.com Subject: RE: aus-wx: Interesting day in Sydney (Matthew Pearce, not Don) Date: Tue, 18 Apr 2000 16:26:40 EST Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Well since the state of origin is not far away .-) John wrote: >Alas, also can I here in Brisbane, which is supposed to be in the 2nd most >Thunderstorm frequented part of Australia after the Top End. > says who?? If you are talking capital cities then Brisbane, on average, has no more thunderdays than Sydney (both average around 30-40 thunderday per year). Or perhaps you are extending Brisbane city limits to the Stanthorpe-Tenterfield area. Oh well I suppose I have to get my kicks somehow - I aint getting any from the weather..... ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 017 From: "Lyle Pakula" [remote at leski.com.au] To: [aussie-weather at world.std.com] Subject: Re: aus-wx: Highs and Colorado etc Date: Tue, 18 Apr 2000 16:32:04 +1000 X-Mailer: Microsoft Outlook Express 5.00.2615.200 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi, Don't think i'll be chasing that front, not really strong enough to get a good dump and hit the hills on. Still waititng for chase #1. Still, I'm sure it'll get all the resorts heralding the "First Flakes" and "What a season *this* one is going to be!" media hype/crap. Quick, throw some money out the window - the ski season is comming! cya Lyle - - ---==( lyle_pakula at hotmail.com )==--- - - . / \ . /~~~\/ \ " No Friends On A Powder Day " / \ \ / \ \ ----- Original Message ----- From: Lindsay [writer at lisp.com.au] To: [aussie-weather at world.std.com] Sent: Tuesday, April 18, 2000 1:14 AM Subject: aus-wx: Highs and Colorado etc > Lucky you Lyle, lucky you. Well, the portents for a cold change next > weekend are reasonable (Damn its hard to type whilst sitting on top of a > 3 feet high milk can! I feel like Humpty Dumpty. We are painting, > computer room is stacked with furniture). > > Keep in touch if you can whilst in the US, I'll try and post this year's > snow chase photos to the group, well to the ASWA or something, like last > year. > > Can't type anymore, I'm about to fall off...aaaaahh! > > > > > Lindsay P. > > > > Lyle Pakula wrote: > > > > Hey Lindsay, > > > > I have noticed a slight shift in the high's to the north. I didn't want to > > say anything and pull a jinx. It was about this time last year that I got my > > first days snowboarding in up at Mt Baw Baw - let's hope for another strong > > southerly buster! > > > > I have to hope for this stuff, I'm off to the US in winter, so I won't get > > another southern hemisphere season. Though i'll spend a few weeks in NZ on > > the way and then be in Colordao for quite some time - can't complain :-) > > > > Cya > > Lyle > > > > - - ---==( lyle_pakula at hotmail.com )==--- - - > > . > > / \ . > > /~~~\/ \ " No Friends On A Powder Day " > > / \ \ > > / \ \ > > > > ----- Original Message ----- > > From: Lindsay > > To: > > Sent: Sunday, April 16, 2000 9:31 AM > > Subject: aus-wx: Highs... and Welcome John > > > > > Hey, don't those highs look nice situating themselves a little further > > > north just now? > > > Almost (I said almost) looks like a winter pattern. I wonder if they'll > > > stay there for a while? Maybe we might get at least a rain event out of > > > this next front due in Sunday sometime. Might even get a bit chilly up > > > our way. Saturday's event left us with 1mm of rain and a bit of ind - > > > wow. > > > > > > Hey, looks like I've recruited another weather enthusiast from the > > > tennis club. He's 18 and has asked me if I would take him on a snow > > > chase this winter. His name is Adam and he said for me to say hello to > > > you guys as he doesn't have an internet connection. > > > > > > And also, welcome John! Good to have you with us. :-) > > > > > > > > > Lindsay Pearce > > > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > > > with "unsubscribe aussie-weather your_email_address" in the body of your > > > message. > > -----------------------jacob at iinet.net.au------------------------------ > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > > with "unsubscribe aussie-weather your_email_address" in the body of your > > message. > > -----------------------jacob at iinet.net.au------------------------------ > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 018 From: "John Woodbridge" [jrw at pixelcom.net] To: [aussie-weather at world.std.com] Subject: RE: aus-wx: A Stormy Question Date: Tue, 18 Apr 2000 16:35:41 +1000 X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) Importance: Normal Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com You mean 10mm surely...? -----Original Message----- From: aussie-weather-approval at world.std.com [mailto:aussie-weather-approval at world.std.com]On Behalf Of Jimmy Deguara Sent: Tuesday, 18 April 2000 14:09 To: aussie-weather at world.std.com Subject: RE: aus-wx: A Stormy Question Hi John and the list, Not disagreeing or agreeing, but the cloud feature was situated at the rear NW section of the storm and lasted some time. The hail did get to about 10cm around some central suburbs of Sydney but I think larger hailstorms were discovered in some of the Coastal suburbs later with the second major cell. There was certainly cold air aloft that day. www.australiansevereweather.simplenet.com/photography/photos/1999/0922jd01.j pg Take a look at all the photos on the day as well as Matt Smith's ones for the day. That may help in deciding the whole situation. There is no doubt that the circular base is part of some rotation and there was updraught into it. Jimmy Deguara At 15:58 17/04/00 +1000, you wrote: >Hi Matthew and others, > >This was an interesting day. My thought is that the NE movement of this >cell after it passed Parramatta may either be evidence a supercell, i.e., >becoming a left mover, or merely a response to NE seabreeze encountered as >the storm got closer to the coast which influenced the direction of >convection propagation. This latter explanation may also account for the >sudden intensification also noted. However, the question arises as to why >the weaker storm with which it collided, did not also change course. I seem >to recall that at maximum intensity 10cent piece sized hail fell in parts of >Ryde, certainly evidence of intense convection. > >It is interesting to note in the latter stages of the animation, that >subsequently a second cell forms behind the one in question, which is itself >an unusual event to say the least. This cell also initially moves East, >then as it gains strength tends NE as well (last frame or two). > >Looking at the two photo's this does not strike me as a wall cloud, merely a >small curved shelf cloud. > >Regards, >John. > >snip > >Subject: aus-wx: A Stormy Question > >Les Lemon and anyone else... > >I got talking to Jimmy this morning about a storm we had on Sept 22 last >year (here in sydney) , with regards to a possible wall cloud that developed >at the back end of the storm. This was an odd situation where 2 storms >actually merged (a strong one and a weaker one), dumping alot of rain in and >around >Sydney > >Here is a photo I took of the possible wall cloud : >www.sydneystormchasers.com/pictures/Matt/1999/09-22-99-08.htm > >A photo Jimmy took around the same time from the other side : >www.australiansevereweather.simplenet.com/photography/photos/1999/0922jd12. j >pg > >Jimmy suspects it was a wall cloud (he viewed it as well) and Andrew Treloar >(Head of Severe Weather in Sydney at the time) said the storm had >"supercellular characteristics". I was just curious as to what your thoughts >might be. Radar is below, as you can see the 2 storms merged and then moved >north east for a short period. > >Any comments would be appreciated by the both of us. > >Matthew Smith > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 019 X-Sender: astroman at mail.chariot.net.au X-Mailer: QUALCOMM Windows Eudora Version 4.3.1 Date: Tue, 18 Apr 2000 16:16:18 +0930 To: aussie-weather at world.std.com From: Andrew Wall [astroman at chariot.net.au] Subject: Re: aus-wx: Cloud Seeding Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Didn't they used to use Dry Ice at one stage and drop it on top of the clouds to produce rain, or am I thinking of something else???? At 11:05 AM 4/18/00 +1000, you wrote: >Hi Matt, > >Just a simplified reponse from what I recall. Cloud seeding is where the >put some sort of chemical (silver iodide) in the clouds that act as the >nuclei for cloud droplets to grow on. This then encourages rain to >increase. The catch is you need cloud almost ready to produce rain for it >to be worthwhile in other words the correct temperature. This is >unfortunately not available during extended dry periods and droughts. And >of course, this program is occurring in a very wet area where there are >useful clouds around. they do this in Victoria and Tassie mostly as far as >I know. Alan Wilkie's book has a picture of a cloud seeding program >experiment in 1947 so it has been around for a while. > >Jimmy Deguara > > >At 09:27 18/04/00 +1000, you wrote: >>What is cloud seeding ? >> >>Matt Smith >> >> >Hello Everyone >> > >> >The cloud seeding aircraft flew into Strahan this morning. It is >> >chartered by the Hydro Electric Corporation at a cost of $1million. The >> >return, I believe, is around $20million in electricity produced. >> >The aircraft seeds the clouds off the coast. >> > >> >Chas >> >Strahan Tasmania >> > >> > >> > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >> > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com >> > with "unsubscribe aussie-weather your_email_address" in the body of your >> > message. >> > -----------------------jacob at iinet.net.au------------------------------ >> > >> > >> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >> To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com >> with "unsubscribe aussie-weather your_email_address" in the body of your >> message. >> -----------------------jacob at iinet.net.au------------------------------ > > >+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com >with "unsubscribe aussie-weather your_email_address" in the body of your >message. >-----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 020 X-Sender: astroman at mail.chariot.net.au X-Mailer: QUALCOMM Windows Eudora Version 4.3.1 Date: Tue, 18 Apr 2000 16:19:09 +0930 To: aussie-weather at world.std.com From: Andrew Wall [astroman at chariot.net.au] Subject: Re: aus-wx: Sydney April 14 DOPPER RADAR!!! Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Excuse my dumbness, wheres the hook echo???? 021 X-Sender: jdeguara at pop.ihug.com.au X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.2 Date: Tue, 18 Apr 2000 16:51:20 +1000 To: aussie-weather at world.std.com From: Jimmy Deguara [jdeguara at ihug.com.au] Subject: RE: aus-wx: A Stormy Question Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Sorry John, I was doing a whole lot of other things at the time. The hail size in some of the coastal suburbs on the 22nd September event got to 3cm possible golf ball as well. Jimmy Deguara At 16:35 18/04/00 +1000, you wrote: >You mean 10mm surely...? > >-----Original Message----- >From: aussie-weather-approval at world.std.com >[mailto:aussie-weather-approval at world.std.com]On Behalf Of Jimmy Deguara >Sent: Tuesday, 18 April 2000 14:09 >To: aussie-weather at world.std.com >Subject: RE: aus-wx: A Stormy Question > > >Hi John and the list, > >Not disagreeing or agreeing, but the cloud feature was situated at the rear >NW section of the storm and lasted some time. The hail did get to about >10cm around some central suburbs of Sydney but I think larger hailstorms >were discovered in some of the Coastal suburbs later with the second major >cell. There was certainly cold air aloft that day. > >www.australiansevereweather.simplenet.com/photography/photos/1999/0922jd01.j >pg > Take a look at all the photos on the day as well as Matt Smith's ones for >the day. That may help in deciding the whole situation. There is no doubt >that the circular base is part of some rotation and there was updraught >into it. > >Jimmy Deguara > > >At 15:58 17/04/00 +1000, you wrote: > >Hi Matthew and others, > > > >This was an interesting day. My thought is that the NE movement of this > >cell after it passed Parramatta may either be evidence a supercell, i.e., > >becoming a left mover, or merely a response to NE seabreeze encountered as > >the storm got closer to the coast which influenced the direction of > >convection propagation. This latter explanation may also account for the > >sudden intensification also noted. However, the question arises as to why > >the weaker storm with which it collided, did not also change course. I >seem > >to recall that at maximum intensity 10cent piece sized hail fell in parts >of > >Ryde, certainly evidence of intense convection. > > > >It is interesting to note in the latter stages of the animation, that > >subsequently a second cell forms behind the one in question, which is >itself > >an unusual event to say the least. This cell also initially moves East, > >then as it gains strength tends NE as well (last frame or two). > > > >Looking at the two photo's this does not strike me as a wall cloud, merely >a > >small curved shelf cloud. > > > >Regards, > >John. > > >snip > > > >Subject: aus-wx: A Stormy Question > > > >Les Lemon and anyone else... > > > >I got talking to Jimmy this morning about a storm we had on Sept 22 last > >year (here in sydney) , with regards to a possible wall cloud that >developed > >at the back end of the storm. This was an odd situation where 2 storms > >actually merged (a strong one and a weaker one), dumping alot of rain in >and > >around > >Sydney > > > >Here is a photo I took of the possible wall cloud : > >www.sydneystormchasers.com/pictures/Matt/1999/09-22-99-08.htm > > > >A photo Jimmy took around the same time from the other side : > >www.australiansevereweather.simplenet.com/photography/photos/1999/0922jd12. >j > >pg > > > >Jimmy suspects it was a wall cloud (he viewed it as well) and Andrew >Treloar > >(Head of Severe Weather in Sydney at the time) said the storm had > >"supercellular characteristics". I was just curious as to what your >thoughts > >might be. Radar is below, as you can see the 2 storms merged and then moved > >north east for a short period. > > > >Any comments would be appreciated by the both of us. > > > >Matthew Smith > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > > with "unsubscribe aussie-weather your_email_address" in the body of your > > message. > > -----------------------jacob at iinet.net.au------------------------------ > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 022 From: "John Woodbridge" [jrw at pixelcom.net] To: [aussie-weather at world.std.com] Subject: RE: aus-wx: Interesting day in Sydney (Matthew Pearce, not Don) etc Date: Tue, 18 Apr 2000 16:59:43 +1000 X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) Importance: Normal Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Oh alright, Notice that I said "in" not "is". I meant S.E. QLD generally as a district not Brisbane as a city. Strictly speaking we are talking about the border ranges anyway, but it does depend upon which reference you read and the scale of any maps therein. Keeping in mind that any storms on the border ranges are generally highly photogenic material from Brisbane city, I reckon this is a fair enough call. In any event, if we keep on as we are, our average thunderdays will soon be around 5. QQUUUUUEEEEEEEEEEENNSSSSSSSSSSLLLLLLAAAAAAAAAAANNNNNNNNDDDDDDDEEERRRRRRR GO THE MIGHTY MAROONS. >snip Well since the state of origin is not far away .-) John wrote: >Alas, also can I here in Brisbane, which is supposed to be in the 2nd most >Thunderstorm frequented part of Australia after the Top End. > says who?? If you are talking capital cities then Brisbane, on average, has no more thunderdays than Sydney (both average around 30-40 thunderday per year). Or perhaps you are extending Brisbane city limits to the Stanthorpe-Tenterfield area. Oh well I suppose I have to get my kicks somehow - I aint getting any from the weather..... +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 023 X-Originating-IP: [203.29.156.6] From: "tony middleton" [anvil_industries at hotmail.com] To: aussie-weather at world.std.com Subject: aus-wx: radars Date: Tue, 18 Apr 2000 18:25:40 EST Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com could someone with some sympathy for us non-computer people please explain the procedure for saving the radar loops?what type of file etc. it would be greatly appreciated. thank you. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 024 From: wbc at ozemail.com.au (Laurier Williams) To: aussie-weather at world.std.com Subject: Re: aus-wx: radars Date: Tue, 18 Apr 2000 09:12:47 GMT X-Mailer: Forte Agent 1.5/32.452 X-MIME-Autoconverted: from quoted-printable to 8bit by europe.std.com id FAA29605 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Tony 1. Get the loop you want up on the screen 2. Right click on the loop after it loads to bring up a popup menu 3. In Netscape, click on Save Image As... In IE, click on Save Picture As... 4. File it wherever you want. I'd suggest making a directory for each radar location, then adding before the given filename the date/time in reverse order. So, for instance, a loop for melbourne for 6pm today would be 200004181800IDR021lp.gif. This will keep your files in chronological order and avoid madness. Cheers Laurier On Tue, 18 Apr 2000 18:25:40 EST, "tony middleton"
At 09:17 AM 4/17/00 +1000, you wrote:
Morning everyone
Nice little treat here for everyone, NSSL/NOAA (National Severe Storms Laberatory) in America have put up Doppler Radar for the April 14 Storm !!!
http://www.nssl.noaa.gov/swat/Cases/990414/case.html
A hook echo is visable.
A huge thanks to Jane from MSC for the link, I didnt know it existed!
Would it have been so hard for the BoM to put something like this together?
I guess we should consider ourselves lucky that an american company puts some of our southern hemisphere stuff up on the web available freely for everyone, unlike here...
Matthew Smith
-----Sydney Storm Chasers-----
http://www.sydneystormchasers.com
----Australian Severe Weather Association (ASWA)----
http://www.severeweather.asn.au
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------
</blockquote></x-html>wrote: >could someone with some sympathy for us non-computer people please explain >the procedure for saving the radar loops?what type of file etc. >it would be greatly appreciated. >thank you. > > > >______________________________________________________ >Get Your Private, Free Email at http://www.hotmail.com > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 025 From: "Peter Tristram" [petertri at midcoast.com.au] To: [aussie-weather at world.std.com] Subject: aus-wx: rain Date: Tue, 18 Apr 2000 21:46:05 +1000 X-Mailer: Microsoft Outlook Express 5.00.2615.200 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Heavy rain at Repton tonight - over 25mm- the radar has the 'storm' sitting just off the coast now. Perhaps Urunga copped much more looking at the loop. I bet that's it for the night now - long time since it's rained all night! Peter +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 026 From: "James Chambers" [jamestorm at ozemail.com.au] To: "aus-wx" [aussie-weather at world.std.com] Subject: aus-wx: SE Qld T'storms & Showers Date: Tue, 18 Apr 2000 22:37:42 +1000 X-Mailer: Microsoft Outlook Express 4.72.3110.1 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all I'd been watching quite nice looking areas of congestus today falling to bits as soon as they got some height to them. It was a pleasant surprise tonight to see showers and weak storms moving across the coastal areas. The storms were weak - I've only seen 4-6 lighting flashes but the rain has been heavy at times, mostly for brief periods. Radar shows precip in the region of 40-100mm/hour in parts and I'd have to go along with that. Although on the road about 20mins ago, the intensity was probably right on 100mm/hour, but of course it only lasted for 30 seconds or so. It was great that these storms occurred because I was just forgetting what they looked like!!! My gauge only has 8.8mm in it. Regards James Chambers (Logan City) The Brisbane & SE Qld Storm Site http://www.ozemail.com.au/~jamestorm/bristorm.html +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ 027 Date: Tue, 18 Apr 2000 23:02:20 +1000 From: Anthony Cornelius [cyclone at flatrate.net.au] X-Mailer: Mozilla 4.72 [en] (Win98; I) X-Accept-Language: en To: Australian Weather Mailing List [aussie-weather at world.std.com] Subject: aus-wx: Night Showers and T'Storms Result in PJ Chase! Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all, I'm sure the gossip will get to everyone eventually, so you may as well hear it from me first! I phoned Matt Smith around lunch time to see if any of the CJ's were precipitating. He reported only isolated 2-10's about. I suggested that some storms may develop later on during the day. Some weak storms developed in the Brisbane Valley and the Border Ranges during the afternoon, but then things died down a little. I was feeling unwell, and was not keeping an eye on things and was planning an early night. In fact, I was just about ready to goto bed, but checked local radar to a little surprise! Noticing that a 40-100 was going to move just to my south, I decided that I'd try and chase it if possible! I had heard a rumble of thunder just before. I grabbed my camera, and raced to my car (yes, in my PJ's - no time to get dressed!), and quickly headed south. I got a lot of drizzle along Creek Rd, and onto Logan Rd. Following Logan Rd, I got into some moderate rain (10-20), which very quickly went to 20-40 and 40-60, and around the 80-100 mark! I was on the phone to Jane at the time (who was getting my exclamations of joy in her ear, while she was saying "yes, I can hear the rain on the windsheild!!!" There was a lot of water over the road, with gutters overflowing. Visibility was greatly reduced (doing about 40-50km/h in a 70 zone), and it was difficult to see the lines and where the road was going. I received similar treatment on Mt Gravatt Capalaba Rd, and Creek Rd while heading back home. I saw one flash of lightning on Creek Rd (WOOHOO!!!!) The things us poor, storm-starved Brisbanites do! -- Anthony Cornelius Queensland Coordinator of the Australian Severe Weather Association (ASWA) (07) 3390 4812 14 Kinsella St Belmont, Brisbane QLD, 4153 Please report severe thunderstorms on our Queensland severe thunderstorm reporting line on (07) 3390 4218 or by going to our homepage at http://www.severeweather.asn.au +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------
Document: 000418.htm
Updated: 03 June 2000 |
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