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Australian Weather Mailing List Archives: Saturday, 18 December 1999 |
From Subject -------------------------------------------------------------------------------------- 001 "Kevin Phyland" [kjphyland at hotmail.com] Explain please... :) 002 "John Woodbridge" [jrw at pixelcom.net] Great Britain Minima 003 Les Crossan [les.crossan at virgin.net] Great Britian Minima 004 Les Crossan [les.crossan at virgin.net] Seriously weird forecasts on the web 005 Les Crossan [les.crossan at virgin.net] Great Britain Minima 006 "Leslie R. Lemon" [lrlemon at compuserve.com] Nine network anals & progs 007 Norman Lynagh [lynagh at dial.pipex.com] Great Britian Minima 008 Norman Lynagh [lynagh at dial.pipex.com] Seriously weird forecasts on the web 009 Norman Lynagh [lynagh at dial.pipex.com] Great Britain Minima 010 "Leslie R. Lemon" [lrlemon at compuserve.com] Nine network anals 011 "Leslie R. Lemon" [lrlemon at compuserve.com] TC John has made land........... 012 "Anthony Spierings" [as029 at powerup.com.au] ww.smh.com.au - Reaction to past storms 013 "Ben Tichborne" [tich at netaccess.co.nz] Snowtown report up and running 014 Les Crossan [les.crossan at virgin.net] Great Britain Minima 015 Les Crossan [les.crossan at virgin.net] UK weather 016 astroman [astroman at chariot.net.au] Snowtown report up and running 017 "Michael Thompson" [michaelt at ozemail.com.au] Snowtown report up and running 018 "Michael Thompson" [michaelt at ozemail.com.au] Upper air soundings 019 astroman [astroman at chariot.net.au] Snowtown report up and running 020 Anthony Cornelius [cyclone at flatrate.net.au] Explain please... :) 021 "Michael Thompson" [michaelt at ozemail.com.au] 1999 Chase Tour Report and Pics 022 "Michael Thompson" [michaelt at ozemail.com.au] Winds back to NE in Illawarra - another SE coming 023 Anthony Cornelius [cyclone at flatrate.net.au] Nice Rainfall Totals in SE QLD 024 Lindsay [writer at lisp.com.au] Powder snow 025 Lindsay [writer at lisp.com.au] Heavy rain in various parts of the country... 026 Lindsay [writer at lisp.com.au] Powder snow 027 Paul Mossman [paulmoss at tpgi.com.au] was Explain please...now info for Les etc.... 028 Jimmy Deguara [jdeguara at ihug.com.au] was Explain please...now info for Les etc.... 029 Paul Mossman [paulmoss at tpgi.com.au] was Explain please...now info for Les etc.... 030 astroman [astroman at chariot.net.au] New pictures added 031 Jimmy Deguara [jdeguara at ihug.com.au] was Explain please...now info for Les etc.... 032 Chas & Helen Osborn [hosborn at tassie.net.au] Powder snow] 033 Sel Kerans [skerans at mail.cth.com.au] Signing off, for a short time... -------------------------------------------------------------------------------------- 001 X-Originating-IP: [203.25.186.106] From: "Kevin Phyland" [kjphyland at hotmail.com] To: aussie-weather at world.std.com Subject: Re: aus-wx: Explain please... :) Date: Sat, 18 Dec 1999 00:42:36 EST Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi every1, This is probably a really dumb question but... How the hell do the various prognostic models calculate stuff like CAPE or LFTX or any of the other widely examined indices with so little REAL upper-level (or for that matter, middle-level) data? I guess I really mean to ask if interpolation is really a satisfactory way of determining data at all! Sorry, but as much as I love the nitty-gritty of the math, I wonder whether it's intrinsically valuable in a place like Australia where 'sondes are probably sent up in, what 50(?) places twice a day! Well it's data, data, data that's required. If the answer to my first question is possible by remote observation (i.e satellite) I'll withdraw all further quibbles, but I sometimes suspect that (like any of us) computer models can make up any damn thing they please based on a dearth of information. In Australia, if you're in (or near) a capital city you may get a reasonable sounding (within the limits already mentioned) but elsewhere it seems a bit random... I hope I don't sound too peeved, but I'd imagine there are other places than where I am with no radar coverage, no T/Td recordings and bad storms.... Hmmnn...please (someone who may or may not be God) give us some way of combining the micro- meso- and macro-aspects of meteorology...Cheers, Kevin from Wycheproof. >From: Anthony Cornelius >Reply-To: aussie-weather at world.std.com >To: aussie-weather at world.std.com >Subject: Re: aus-wx: Explain please... :) >Date: Fri, 17 Dec 1999 08:50:21 +1000 > >Hi Les and Leslie :) > >"Leslie R. Lemon" wrote: > > > > Les (UK): > > > > > btw I've got a Skew-T dating from 1960, I know CAPE is high but can > > someone tell > > > me how high by showing me the math(s)??? > >Did you want to scan this? I can then plot it manually, and give you a >fairly 'accurate estimate' - well, within 10% normally. If the figures >are easily legible, I can chuck them into my CAPE proggy and calculate >the exact figure too. > > > Let me take a shot at this via e-mail. It is the integral of the of the >dot > > product of the storm relative wind vector and the horizontal vorticity > > vector with respect to height over the height range of 0 to Z. > >Actually - I think this is the SRH equation (?) > >The equation I've always learnt is the 'looks easy, but is bloody >complicated' version: > >CAPE = g x of Tv(z)> - Tv(z) all over Tv(z) with respect to height (z) > >Where g = gravitational something >LFC = Level of Free Convection >EL = Equilibrium Level >Tv = Virtual Temperature > >Where Tv = (T/1 - (e/p(1-0.622)) > >When T = Temperature >e = vapour pressure >p = atmospheric pressure > >Where e = (es - Ap(T-Tw) > >When es = saturated vapour pressure >A = some ventilation constant >Tw = Wetbulb Temperature > >After you substitute everything in, you get a very messy equation that >will take me 10 mins to type out! > >I've often tried to calculate this for myself, but failed because: > >- I don't have any values for 'A' >- I'm not sure how to calculate e or es without at least one of them > >If anyone can assist me with the above, it'd be VERY much appreciated. > >This is something I got from reading about the CAPE equation in a book - >and then I went through other books to find the missing equations and >variables - so if I've made a mistake somewhere along the way...please >tell me! > >As I said though - the easiest thing is to manually plot the skew-t, and >derive an estimate of CAPE :) So if you want to scan it (or even post >it!) to me Les, I can try and work it out for you. >-- >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------------------------------ ______________________________________________________ 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------------------------------ 002 From: "John Woodbridge" [jrw at pixelcom.net] To: [aussie-weather at world.std.com] Subject: RE: aus-wx: Great Britain Minima Date: Fri, 17 Dec 1999 23:55:28 +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 Hmmm, I recall a particularly severe winter in the U.K. in the early 60's, Jan 62 I think (may have been 60, 61 or even 63). At the time I lived in a semi-detached house in St. Albans (Marshalswick Estate) about 20 miles north of London. The lounge had a gas heater, but still we managed to crust ice over 1" thick in the corners of windows on the inside! (Yes true, imagine that, Brisbanites!) Snow was piled up in drifts 6' deep outside. I recall a report of 33 deg of frost, meaning -1 Fahrenheit. I'd be curious if someone in the UK can dig the records and see how this event compares with the more recent mentioned below. John. >snip In message <385AA164.73FB at lisp.com.au>, Lindsay writes >What sort of low temps do they get in these cold outbreaks? What sort of >wind chills as well? > > >Lindsay P. > Down here in the much more sheltered south of England we occasionally get down to -10c in calm anticyclonic conditions and to -15c very rarely. The most severe conditions here are with an easterly wind coming off the continent with a large high centred over Scandinavia. The most severe event in recent years was in January 1987 (not so recent really!). My records show the following: Min Max Wind Snow depth --- --- ---- ---------- 10 Jan -0.4c +0.6c ENE Force 3-4 Nil 11 Jan -6.9c -3.3c NE Force 2-3 Nil 12 Jan -10.2c -7.1c NE Force 3 1 cm 13 Jan -9.9c -4.0c NE Force 3-4 2 cm 14 Jan -7.0c -3.6c NE Force 4-6 8 cm 15 Jan -4.3c -0.1c NE Force 4-5 7 cm 16 Jan -1.5c +0.4c NE Force 3-4 5 cm 17 Jan -2.3c -1.4c SE Force 1-2 5 cm 18 Jan -3.1c -1.2c SE Force 2 5 cm 19 Jan -3.1c -1.4c SE Force 2 5 cm 20 Jan -1.5c +1.7c Light & var 4 cm +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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: Fri, 17 Dec 1999 14:13:47 +0000 From: Les Crossan [les.crossan at virgin.net] Organization: Cosmic EuroCon - note all times in GMT X-Mailer: Mozilla 4.5 [en] (Win98; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: Great Britian Minima Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Norman Lynagh wrote: Presumably the same Norman Lynagh that subscribes to uk.sci.weather.... this is an amazing place, aus-wx! Have you seen their websites - amazing stuff... Les(UK) +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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: Fri, 17 Dec 1999 14:19:08 +0000 From: Les Crossan [les.crossan at virgin.net] Organization: Cosmic EuroCon - note all times in GMT X-Mailer: Mozilla 4.5 [en] (Win98; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: Seriously weird forecasts on the web Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Norman Lynagh wrote: > In message <385A08F3.6B5E8A69 at virgin.net>, Les Crossan > > No Les, Blair is correct. The Dec 1995 severe cold spell Yeah. I'm wrong but hadn't seen todays charts / models. Oops! It was coold, then - frozen pipes and all. Wasn't there a more serious freezeup in the UK in the early 80's when there was a blocking high over Scandanavia with maxima of 0 and minima of -10 or less???? >From a snow and cloud-free free Wallsend 55N 0130E. Les(UK) +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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: Fri, 17 Dec 1999 14:20:31 +0000 From: Les Crossan [les.crossan at virgin.net] Organization: Cosmic EuroCon - note all times in GMT X-Mailer: Mozilla 4.5 [en] (Win98; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: Great Britain Minima Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com John Woodbridge wrote: > Hmmm, > > I recall a particularly severe winter in the U.K. Will post on uk.sci.weather and see what I get! (too young to remember this) Les +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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 Date: Fri, 17 Dec 1999 09:34:20 -0500 From: "Leslie R. Lemon" [lrlemon at compuserve.com] Subject: Re: aus-wx: Nine network anals & progs 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 JAA16785 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Mark: You make some very good points here. Weather does impact peoples lives here to a significant extent. Thus, we become very sensitive to it. It also has a major on industry and transportation. Thus, it is of great importance to us. I have also visited TWC. In fact, I have given their staff training on four occasions with two day seminars on radar and severe storms. They are also really great people! Good to hear from you!! Les ************************ Leslie R. Lemon Radar, Severe Storms, & Research Meteorologist Phone: 816-373-3533 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------------------------------ 007 Date: Fri, 17 Dec 1999 15:59:56 +0000 To: aussie-weather at world.std.com From: Norman Lynagh [lynagh at dial.pipex.com] Subject: Re: aus-wx: Great Britian Minima X-Mailer: Turnpike (32) Version 4.00 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com In message <385A451B.818F25F9 at virgin.net>, Les Crossan writes > > >Norman Lynagh wrote: > >Presumably the same Norman Lynagh that subscribes to uk.sci.weather.... this >is an amazing place, aus-wx! > >Have you seen their websites - amazing stuff... > >Les(UK) > The very same person - Haven't poked around the websites too much yet but will do so. My Aussie interest is because I worked for the BoM from 1967-1970. Started with 9 months at the BoM College in Melbourne then the rest of the time in Queensland, NT and New Guinea. Norman =================================================================== Norman Lynagh Weather Consultancy Tel: +44 (0)1494 870220 Chalfont St. Giles E-Mail: lynagh at dial.pipex.com Buckinghamshire England =================================================================== +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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 Date: Fri, 17 Dec 1999 16:01:44 +0000 To: aussie-weather at world.std.com From: Norman Lynagh [lynagh at dial.pipex.com] Subject: Re: aus-wx: Seriously weird forecasts on the web X-Mailer: Turnpike (32) Version 4.00 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com In message <385A465C.4B7E61BD at virgin.net>, Les Crossan writes > > >Norman Lynagh wrote: > >> In message <385A08F3.6B5E8A69 at virgin.net>, Les Crossan >> > >> No Les, Blair is correct. The Dec 1995 severe cold spell > >Yeah. I'm wrong but hadn't seen todays charts / models. Oops! > >It was coold, then - frozen pipes and all. Wasn't there a more serious freezeup >in >the UK in the early 80's when there was a blocking high over Scandanavia with >maxima of 0 and minima of -10 or less???? > Might you be thinking of 1978/79? That was a long hard winter. Norman. =================================================================== Norman Lynagh Weather Consultancy Tel: +44 (0)1494 870220 Chalfont St. Giles E-Mail: lynagh at dial.pipex.com Buckinghamshire England =================================================================== +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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 Date: Fri, 17 Dec 1999 16:17:26 +0000 To: aussie-weather at world.std.com From: Norman Lynagh [lynagh at dial.pipex.com] Subject: Re: aus-wx: Great Britain Minima X-Mailer: Turnpike (32) Version 4.00 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com In message <000001bf4896$64e385b0$0401010a at pixelcom.net>, John Woodbridge writes >Hmmm, > >I recall a particularly severe winter in the U.K. in the early 60's, Jan 62 >I think (may have been 60, 61 or even 63). At the time I lived in a >semi-detached house in St. Albans (Marshalswick Estate) about 20 miles north >of London. The lounge had a gas heater, but still we managed to crust ice >over 1" thick in the corners of windows on the inside! (Yes true, imagine >that, Brisbanites!) Snow was piled up in drifts 6' deep outside. I recall a >report of 33 deg of frost, meaning -1 Fahrenheit. > >I'd be curious if someone in the UK can dig the records and see how this >event compares with the more recent mentioned below. > >John. You're undoubtedly thinking of the famous (notorious) winter of 1962/63. The cold weather set in just before Christmas and there was a heavy snowfall in southern England on Boxing Day. From then, right through to sometime in March easterly winds were very dominant, bringing cold air from Europe and further east. The freeze was very persistent and there were several heavy snowfalls over the southern half of the country. With strong winds and temperatures way below freezing the snow built up into huge drifts causing widespread transport chaos. From time to time quiet anticyclonic conditions and the deep snow cover led to very low night minima. Your recollection of the conditions seems pretty accurate. The winter of 1962/63 was, arguably, the most severe of this century in the UK as a whole, although not everywhere was badly affected. I worked at the Met Office at Prestwick Airport on the west coast of Scotland at that time. I travelled 30 miles each way by motor-bike to get to and from work. With the persistent easterly winds, instead of the more usual W-SW winds, we had a very dry winter with almost no snow. Night temperatures were often below freezing and black ice was sometimes a hazard in the mornings. As far as I can remember I only fell off my motor-bike once on black ice - not bad for the "winter of the century". Norman. =================================================================== Norman Lynagh Weather Consultancy Tel: +44 (0)1494 870220 Chalfont St. Giles E-Mail: lynagh at dial.pipex.com Buckinghamshire England =================================================================== +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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: Fri, 17 Dec 1999 13:53:47 -0500 From: "Leslie R. Lemon" [lrlemon at compuserve.com] Subject: Re: US/AU Conditions (was) Re: aus-wx: Nine network anals &progs 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 NAA01394 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Anthony and all: > This is certainly interesting, would this have something to do with the > fact that it's best if your SRH potential is in the 0-3km area of the > thunderstorm (height)? Meaning that the lower your updraft can really I am sorry that I can not tackle this and the rest of your message now.....just swamped with work and the holiday but will get to it! I will try to answer what I can. Maybe Harald can take a shot at this in the mean time if he has any of the rare commodity called "time"! LOL (I am sure he is busier that I am!! Besides he wore himself out on the math yesterday! LOL......that was great, Harald! ) Les ************************ Leslie R. Lemon Radar, Severe Storms, & Research Meteorologist Phone: 816-373-3533 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: Fri, 17 Dec 1999 14:51:46 -0500 From: "Leslie R. Lemon" [lrlemon at compuserve.com] Subject: Re: aus-wx: TC John has made land........... 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 OAA14751 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Lindsay and all: Lindsay Pearce asked: > Whereabouts are you again Leslie? Altitude there? What's your typical > maximum and minimum for winter? Very near the geographic center of the contiguous 48 states......that is in Independence, MO (Missouri) which is a suburb (on the east side) of Kansas City, MO. That is another point. Kansas City is situated on the border between Kansas and MO. The lions share of the city is located on the MO side. The altitude is 300 to 400 m MSL. Our climate is very much continental. We get down to lows in the typical winter of -5 to -10 F on the coldest nights and highs during the warmest days of summer of +105 to 110 F. During the summer our DP range from low 50s F to upper 70s F (that is extremely steamy!). have an average total rainfall of ~ 38 inches each year and average snow of only ~ 20 inches. You did ask about typical maximums for winter.......usually mid 20s F to low 40s F. There are a few days in the typical winter when the temp will stay bellow 0 F. This is usually in mid January. Les ************************ Leslie R. Lemon Radar, Severe Storms, & Research Meteorologist Phone: 816-373-3533 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: "Anthony Spierings" [as029 at powerup.com.au] To: [aussie-weather at world.std.com] Subject: aus-wx: ww.smh.com.au - Reaction to past storms Date: Sat, 18 Dec 1999 07:04:20 +1000 X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 Importance: Normal Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Article in today's Sydney Morning Herald about people's reaction to April's storm. The link to the web site is; http://www.smh.com.au/news/9912/18/pageone/pageone4.html Interesting article, in light of the discussion on the poor quality of weather information provided by Channel 9. (Personally, I think Monty would serve the community better by being the lightning rod on top of Center Point.) As for Ray Wilkie; there was a small section in the local paper about his replacement. Apparently Channel 10 are looking for someone whom is a) female, b) young, c) pretty, (and has big, aahhh, you know). No mention of the qualities required for explaining the weather. Sigh. Regards, Anthony Spierings +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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 From: "Ben Tichborne" [tich at netaccess.co.nz] To: [aussie-weather at world.std.com] Subject: Re: aus-wx: Snowtown report up and running Date: Sat, 18 Dec 1999 10:35:14 +1300 X-Mailer: Microsoft Internet Mail 4.70.1161 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com I wonder how that town got its name. Looking at a map showing it altitude and location, it doesn't seem to be very appropriately named. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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 Date: Fri, 17 Dec 1999 21:42:26 +0000 From: Les Crossan [les.crossan at virgin.net] Organization: Cosmic EuroCon - note all times in GMT X-Mailer: Mozilla 4.5 [en] (Win98; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: Great Britain Minima Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com John Woodbridge wrote: > Hmmm, > > I recall a particularly severe winter in the U.K. in the early 60's Heres the best one from uk.sci.weather.... *snip* Here's a taster, from the Monthly Weather report summary for 1963: "The bitterly cold weather with easterly winds and widespread snow which set in about Christmas 1962 continued almost without a break throughout January and February. Snow fell in one place or another every day except the last few days of February, and ground remained snow-covered over a large part of the country until the beginning of March. Blizzards during the first three days of January, described as the worst since 1881, piled snow into drifts, 20 feet deep in parts of the West Country and 8 feet deep in Kent., blocking access by road or rail to many towns and villages. Helicopters were used to drop supplies and fodder ..." Level depths of snow in inches at 10 day intervals in Hampstead (London): Jan 1, 12; Jan 11, 9; Jan 21, 14; Jan 31, 9; Feb 10, 3; Feb 20, 4; March 1; 0. (Kielder Castle had 16 inches depth on March 1). Lowest Max at Hampstead in Jan/Feb was -4, lowest min -12. Lots of other places (but not everywhere) had it worse than London! I was at school in Stockport - not so much snow as London but boy was it cold - and the two to three solid days of freezing pea souper fog at -5 to -10, with tons of rime on the trees, was as memorable to me as the snow! *snip* Les(UK) +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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------------------------------ 015 Date: Fri, 17 Dec 1999 21:59:38 +0000 From: Les Crossan [les.crossan at virgin.net] Organization: Cosmic EuroCon - note all times in GMT X-Mailer: Mozilla 4.5 [en] (Win98; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: UK weather Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Lindsay wrote: > Interesting Blair, yes i will keep an eye on the British weather. I've > got a friend near the Wales border. 2158gmt - the forecasters still aren't very sure what's going to happen.... ): Les(UK) +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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-Sender: astroman at mail.chariot.net.au X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58 Date: Sat, 18 Dec 1999 08:51:40 +1030 To: aussie-weather at world.std.com From: astroman [astroman at chariot.net.au] Subject: Re: aus-wx: Snowtown report up and running Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Snowtown does not actually have anything to do with the white stuff that falls from clouds (not hail either) Snowtown was named by a former Governor of South Australia, Sir Thomas Jervois, after his private secretary, Thomas Snow.The township was proclaimed on 17 December, 1878 and was designed as a railway town. And yes yesterday was it's Anniversary. At 10:35 AM 18/12/99 +1300, you wrote: > I wonder how that town got its name. Looking at a map showing it altitude >and location, it doesn't seem to be very appropriately named. > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > 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------------------------------ 017 From: "Michael Thompson" [michaelt at ozemail.com.au] To: [aussie-weather at world.std.com] Subject: Re: aus-wx: Snowtown report up and running Date: Sat, 18 Dec 1999 10:00:21 +1100 X-Mailer: Microsoft Outlook Express 5.00.2014.211 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Thanks, I too have often wondered about that. Sure looks dry in those pictures too, I know they want dry for the wheat harvest, but there is little ground vegetation - dead or alive. In NSW it is pretty much green everywhere except the far SW. In fact in 3900km of storm chasing earlier this month the driest region I saw was a toss between Albury and my hometown in the Illawarra. Michael > Snowtown does not actually have anything to do with the white stuff that > falls from clouds (not hail either) > > Snowtown was named by a former Governor of South Australia, Sir Thomas > Jervois, after his private secretary, Thomas Snow.The township was > proclaimed on 17 December, 1878 and was designed as a railway town. > > And yes yesterday was it's Anniversary. > > > At 10:35 AM 18/12/99 +1300, you wrote: > > I wonder how that town got its name. Looking at a map showing it altitude > >and location, it doesn't seem to be very appropriately named. > > > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > 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: "Michael Thompson" [michaelt at ozemail.com.au] To: [aussie-weather at world.std.com] Subject: Re: aus-wx: Upper air soundings Date: Sat, 18 Dec 1999 10:15:01 +1100 X-Mailer: Microsoft Outlook Express 5.00.2014.211 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Kevin Tim Marshall has just written a small commentary on upper air soundings, he sounds out the same concerns as you, for example quote "Balloons are still being launched twice a day and the stations are 400 km apart on average. What a joke. It is a wonder the numerical models work as well as they do" The full article is http://www.storm-track.com/stcomm.htm Michael > Sorry, but as much as I love the nitty-gritty of the math, I wonder whether > it's intrinsically valuable in a place like Australia where 'sondes are > probably sent up in, what 50(?) places twice a day! > > Well it's data, data, data that's required. If the answer to my first > question is possible by remote observation (i.e satellite) I'll withdraw all > further quibbles, but I sometimes suspect that (like any of us) computer > models can make up any damn thing they please based on a dearth of > information. > > In Australia, if you're in (or near) a capital city you may get a reasonable > sounding (within the limits already mentioned) but elsewhere it seems a bit > random... > > I hope I don't sound too peeved, but I'd imagine there are other places than > where I am with no radar coverage, no T/Td recordings and bad storms.... > > Hmmnn...please (someone who may or may not be God) give us some way of > combining the micro- meso- and macro-aspects of meteorology... > > Cheers, > Kevin from Wycheproof. > > > > > > >From: Anthony Cornelius > >Reply-To: aussie-weather at world.std.com > >To: aussie-weather at world.std.com > >Subject: Re: aus-wx: Explain please... :) > >Date: Fri, 17 Dec 1999 08:50:21 +1000 > > > >Hi Les and Leslie :) > > > >"Leslie R. Lemon" wrote: > > > > > > Les (UK): > > > > > > > btw I've got a Skew-T dating from 1960, I know CAPE is high but can > > > someone tell > > > > me how high by showing me the math(s)??? > > > >Did you want to scan this? I can then plot it manually, and give you a > >fairly 'accurate estimate' - well, within 10% normally. If the figures > >are easily legible, I can chuck them into my CAPE proggy and calculate > >the exact figure too. > > > > > Let me take a shot at this via e-mail. It is the integral of the of the > >dot > > > product of the storm relative wind vector and the horizontal vorticity > > > vector with respect to height over the height range of 0 to Z. > > > >Actually - I think this is the SRH equation (?) > > > >The equation I've always learnt is the 'looks easy, but is bloody > >complicated' version: > > > >CAPE = g x of >Tv(z)> - Tv(z) all over Tv(z) with respect to height (z) > > > >Where g = gravitational something > >LFC = Level of Free Convection > >EL = Equilibrium Level > >Tv = Virtual Temperature > > > >Where Tv = (T/1 - (e/p(1-0.622)) > > > >When T = Temperature > >e = vapour pressure > >p = atmospheric pressure > > > >Where e = (es - Ap(T-Tw) > > > >When es = saturated vapour pressure > >A = some ventilation constant > >Tw = Wetbulb Temperature > > > >After you substitute everything in, you get a very messy equation that > >will take me 10 mins to type out! > > > >I've often tried to calculate this for myself, but failed because: > > > >- I don't have any values for 'A' > >- I'm not sure how to calculate e or es without at least one of them > > > >If anyone can assist me with the above, it'd be VERY much appreciated. > > > >This is something I got from reading about the CAPE equation in a book - > >and then I went through other books to find the missing equations and > >variables - so if I've made a mistake somewhere along the way...please > >tell me! > > > >As I said though - the easiest thing is to manually plot the skew-t, and > >derive an estimate of CAPE :) So if you want to scan it (or even post > >it!) to me Les, I can try and work it out for you. > >-- > >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------------------------------ > > ______________________________________________________ > 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------------------------------ 019 X-Sender: astroman at mail.chariot.net.au X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58 Date: Sat, 18 Dec 1999 10:09:15 +1030 To: aussie-weather at world.std.com From: astroman [astroman at chariot.net.au] Subject: Re: aus-wx: Snowtown report up and running Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Also the hail and wind had destroyed what vegetation there was, within a day ground temperatures burnt what was left. At 10:00 AM 18/12/99 +1100, you wrote: >Thanks, I too have often wondered about that. Sure looks dry in those >pictures too, I know they want dry for the wheat harvest, but there is >little ground vegetation - dead or alive. In NSW it is pretty much green >everywhere except the far SW. In fact in 3900km of storm chasing earlier >this month the driest region I saw was a toss between Albury and my hometown >in the Illawarra. > >Michael > > > > Snowtown does not actually have anything to do with the white stuff that > > falls from clouds (not hail either) > > > > Snowtown was named by a former Governor of South Australia, Sir Thomas > > Jervois, after his private secretary, Thomas Snow.The township was > > proclaimed on 17 December, 1878 and was designed as a railway town. > > > > And yes yesterday was it's Anniversary. > > > > > > At 10:35 AM 18/12/99 +1300, you wrote: > > > I wonder how that town got its name. Looking at a map showing it >altitude > > >and location, it doesn't seem to be very appropriately named. > > > > > > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > > 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 Date: Sat, 18 Dec 1999 10:18:40 +1000 From: Anthony Cornelius [cyclone at flatrate.net.au] X-Mailer: Mozilla 4.6 [en] (Win98; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: Explain please... :) Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Kevin, Kevin Phyland wrote: > > Hi every1, > > This is probably a really dumb question but... No question is ever dumb! We're all here to learn after all, and you won't learn if you don't ask! > How the hell do the various prognostic models calculate stuff like CAPE or > LFTX or any of the other widely examined indices with so little REAL > upper-level (or for that matter, middle-level) data? Refer to my previous email about the CAPE equation, but essentially, a model tries to calculate different levels in the atmosphere that will give a representation of what the overall atmosphere is like. Once these levels are calculated, it then applies the relative equations to calculate CAPE over a given area. No model will do *every* single square inch of the ground, or the upper levels for that matter, but rather it'll calculate many different areas. This makes it a lot easier for the model, but is one reason why thunderstorm forecasting can be so difficult - if the models resolution is too low (ie, does large areas for ease of calculation), then a) It can miss, or 'average out' different aspects of the environment b) It may not detect very small changes, or influences that could really have a strong effect on the weather in the immediate surroundings. LI's are simple to calculate, all you need is a Skew-t, and you can do it in your head. Just lift a parcel of air up through the upper atmosphere, and then simply read the difference of the 500mb environmental temp, and the air parcel 500mb temp. So that LI's = 500mb environmental temp - 500mb air parcel temp So that if your 500mb environmental temp is -20C, and your 500mb air parcel temp is -5C you have: LI = -20 - -5 LI = -20 + 5 LI = -15 EKI = +infinity :-) (EKI = Excited Kevin Index!) Your concerns are quite valid Kevin - yes they do use satellite imagery in the process of model runs, but I'm not quite satisfied. Our sounding stations are *far* too widely dispersed! Sometimes there's no sounding stations for near 1000km here, and they only go up twice a day (although some do go up 3-4 times a day if I'm correct). It's far too easy for the fine elements of the upper atmosphere to go undetected. One such example, could be the April 14 supercell hailstorm, it does appear that a cold pool did go undetected, perhaps if it had been detected, we would have seen a much different forecast! Even here in Brisbane we get occassional upper systems that go undetected until they reach the coast. This is especially the case when the surface itself is too dry to form anything, so satellite imagery is useless in this case. I would suspect this would quite often be the case when upper level systems go undetected/under forecasted. Hopefully with the implementation of automatic sounding stations, we'll see more sounding stations around Australia in the next few years. The surface data is somewhat better due to the AWS network, certainly much better then the upper level data density! -- 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------------------------------ 021 From: "Michael Thompson" [michaelt at ozemail.com.au] To: [aussie-weather at world.std.com] Subject: aus-wx: 1999 Chase Tour Report and Pics Date: Sat, 18 Dec 1999 12:40:26 +1100 X-Mailer: Microsoft Outlook Express 5.00.2014.211 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Finally have written my report on the 1999 chase tour, I missed the best days at the beginning. Report is below -- http://thunder.simplenet.com/chase/tour3.htm Michael Thompson http://thunder.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------------------------------ 022 From: "Michael Thompson" [michaelt at ozemail.com.au] To: [aussie-weather at world.std.com] Subject: aus-wx: Winds back to NE in Illawarra - another SE coming Date: Sat, 18 Dec 1999 16:38:28 +1100 X-Mailer: Microsoft Outlook Express 5.00.2014.211 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com I wrote a few weeks ago that a quick flick back to NE by winds means that there is a SE coming again with 12 - 18 hours. This situation is happening in the Illawarra today with the winds already back to NE after the change to the SE around midday yesterday. It may not mean much in the way of weather, but occasionally the lower air pressures in these weak troughs is enough to trigger storms ( unlikely this time ) or showers when the SE re-establishes ( likely ). These little things interest me as they often represent days when the forecasts don't follow the plan, and they are common along the southern NSW coast in late Spring - Early Summer. The NE days tend be slightly warmer then the original forecasted SE day, then when the trough passes or breaks down and the SE re-establishes it is often with showers that were not forecast. What happens is the main anticyclone is back over the bight, a trough passes through and winds turn SE, however the main high tries to ridge itself into the Tasman, like a lava lamp or beads feeding into each other. When this ridging occurs often a small sometimes detached, sometimes just a short ridge of high pressure makes it into the Tasman, this creates a small trough west of the coast, and this is what turns winds NE and lifts the chances or thunder and or showers. Almost always the change back to SE occurs during the night with these cases too - interesting ? Michael Thompson http://thunder.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------------------------------ 023 Date: Sat, 18 Dec 1999 16:15:42 +1000 From: Anthony Cornelius [cyclone at flatrate.net.au] X-Mailer: Mozilla 4.6 [en] (Win98; I) X-Accept-Language: en To: Australian Weather Mailing List [aussie-weather at world.std.com] Subject: aus-wx: Nice Rainfall Totals in SE QLD Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all, Seems like a good scattering of rainfall in the past 24hours - nothing too major though, although my dad has recorded 115mm at his property (Hiddenvale, near Grandchester - 100km or so WSW of Brisbane) in the past 24hrs! 62mm o'night, and 53mm from 9am-2pm - when he rang me just after 2pm asking where the rain had gone because it had suddenly stopped! All the dams are now full though, and they're "overflowing like a waterfall." :) I wasn't so lucky - 29.6mm o'night, 13.5mm during the day - 43.1mm all up. If course, it's also been rather cold - had the heater on for most of the day, it was 19.8C at midday!!! Which is around 8C below normal, currently sitting on 21.3C - which is my max for today! Where's summer!!!? Here is the rainfall bulletin - nearly everywhere has had between 1-2inches. RAINFALL SOUTHEAST COAST: [15] Amberley 43 Beaudesert 41 Beechmont 33 Beenleigh 16 Beerburrum 23 Canungra 35 Cape Moreton 30 Coolangatta 32 Crows Nest 34 Darlington 47 Foxley 44 Gatton 55 Gold Cst Seaway 35 Hinze Dam 26 Kenilworth 14 Lake Cooroibah 13 Lindfield 24 Logan City 19 Lowood 35 Macleans Bridge 26 Maleny 15 Maroochydore 21 Maroon Dam 50 Miami 24 Moogerah Dam 56/2 Morayfield 39 Mt Glorious 9 Mt Mee 30 Mt Nebo 27 Mt Tamborine 33 Mt Tarampa 52 Mulgowie 39 Nambour 27 Nerang 36 Norwell 15 Palmwoods 28 Pechey 51 Pt Arkwright 32 Point Lookout 11 Romani 28 Somerset Dam 29 Southport 60 Springbrook 28 Tarome 51 Tewantin 14 Toogoolawah 35 RAINFALL METROPOLITAN: Archerfield 41 Ashgrove 21 Boondall 16 Brisbane AP 18 Capalaba 30 Cleveland 19 Greenbank 39 Kalinga 20 Lytton 22 Manly 22 Mt Gravatt 32 Oxley 31 Redcliffe 20 Strathpine 19 Sunnybank 29 Toombul 16 -- 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------------------------------ 024 Date: Fri, 17 Dec 1999 13:37:04 -0800 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: Powder snow Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Yeah, i guess that is generally true although I have experienced small (pea size and less) and dry flakes falling at Oberon with the temp below zero. The air seemed quite dry which seemed to make the snow not feel cold at all, to do with less cold transference with dry snow perhaps? I'm not sure. I just remember walking around taking photos in jeans and a t-shirt/light jumper and no gloves with no sense of it being particularly cold. The fall there last June was GREAT! I think the official amount was 40cm but it seemed more than that in places on the ground. Even on that day, it didn't feel that cold, although maybe this is an acclimatised person speaking as some of the tourist were saying it was bloody freezing! Lindsay Pearce Michael Thompson wrote: > > I have never skied in my life, but I think powder is a product of low > humidity - low temperatures, whilst Aussie snow tends to be in very humid > environments with temps often just under 0C , which equals large flakes. > > 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------------------------------ 025 Date: Fri, 17 Dec 1999 13:24:55 -0800 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: Heavy rain in various parts of the country... Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com G'day Blair, Blair Trewin wrote: > Queensland looks like it might get some substantial rain over the > next two days (which is normally the only way that Victoria avoids > losing at the Gabba, so I can't be too upset :-). Also pretty cool > over the SE (Melbourne is not forecast to get into 548-plus thicknesses > until Monday night). > Yeah, but it might also allow the Queenslanders to get a bit of swing in that humidity :-) - Can you tell my mother was a Queenslander? I say was, she's a Blackheathean now, two foot underneath my dogwood tree in the form of ashes! There's a few cricketing jokes relating to urns there... Lindsay Pearce PS: we have the bat that The Don used to score a hundred on the Blackheath Oval, its in the bowling club. Then again, its not that hard to reach the boundaries on our oval. > Blair Trewin > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > 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------------------------------ 026 Date: Fri, 17 Dec 1999 13:43:36 -0800 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: Powder snow Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Feel free to describe more Michael. God I'm talking about snow in the first month of summer! But hey, we can get some form of snow here over most months, well not Dec/Jan/Feb I guess. The snow at Oberon last June was definately good enough for skiing. I haven't seen snow like that outside of the Aussie Alps before. Any body got records of snow falls at Oberon? Lindsay Pearce. PS: Unzipped your OBS800M.ZIP no worries too, thanks. Michael Scollay wrote: > > Lindsay wrote: > > > > For Michael Scollay and others in the "snow know" > > > > I was reading about The Rocky Mountains snow fields (Colorado) > > and the amount of powder snow they receive there. The article > > said that Australia rarely gets more than a few centimetres > > of powder snow over a hard base. > > > > Is this true? > > > > I thought that at times after a fresh dump it could be quite > > powdery for a day or so...just wondering. > > First of all, the author of that arctical is talking off > the top of his hat with a load of crap. I'll take him out > on the main range almost any day in July/August and laugh > at him/her buried in Aussie powder over his head but with > one qualification - the conditions have got to be spot on. > > Secondly, I've skiied "powder" in Colorado, Utah and France. > There's nothing like the lightness of Utah dry snow which > is the other name for "powder" with its huge lightly-packed > classic snow-crystaline structure. Now that is a rare sight > in Australia as our dry snow tends to be more tightly > packed with crystals not quite as large. > > I could describe more (favourite subject) later... > > Michael Scollay mailto:michael.scollay at telstra.com.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------------------------------ 027 Date: Sat, 18 Dec 1999 18:12:14 +0930 From: Paul Mossman [paulmoss at tpgi.com.au] X-Mailer: Mozilla 4.08 [en] (Win98; I) To: aussie-weather at world.std.com Subject: aus-wx: was Explain please...now info for Les etc.... Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Howdy all. Just a note for Les(USA) re: Cape figures etc. Darwins for today was 1929 with a Lftx of -4.8 that was at 0Z. I will try and keep an eye on every sounding to see what sort of figures relate to weather events up here - I know that there is a trough approaching us due Monday - will be interesting to see how that will effect figures etc. Paul at Darwin. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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------------------------------ 028 X-Sender: jdeguara at pop.ihug.com.au X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58 Date: Sat, 18 Dec 1999 19:43:01 +1100 To: aussie-weather at world.std.com From: Jimmy Deguara [jdeguara at ihug.com.au] Subject: Re: aus-wx: was Explain please...now info for Les etc.... Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Paul, I believe that the LI values and associated CAPE values for the region around Darwin to be quite high. I think the best storms are usually a few hundred kilometres generally S of Darwin where you can get interaction with drier air. Like Anthony says, wind shear is a problem. Storms pop up and collapse most of the time. Nevertheless, they are quite spectacular and huge. Jimmy Deguara At 18:12 18/12/99 +0930, you wrote: >Howdy all. > >Just a note for Les(USA) re: Cape figures etc. > >Darwins for today was 1929 with a Lftx of -4.8 that was at 0Z. > >I will try and keep an eye on every sounding to see what sort of figures >relate to weather events up here - I know that there is a trough >approaching us due Monday - will be interesting to see how that will >effect figures etc. > >Paul at Darwin. > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > 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------------------------------ 029 Date: Sat, 18 Dec 1999 18:37:01 +0930 From: Paul Mossman [paulmoss at tpgi.com.au] X-Mailer: Mozilla 4.08 [en] (Win98; I) To: aussie-weather at world.std.com Subject: Re: aus-wx: was Explain please...now info for Les etc.... Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Jimmy . I wanst talking about storms - Les was unaware that our Tropical areas can get CAPEs above several '00's - just letting him know what sort of values thats all. Jimmy Deguara wrote: > > Paul, I believe that the LI values and associated CAPE values for the > region around Darwin to be quite high. I think the best storms are usually > a few hundred kilometres generally S of Darwin where you can get > interaction with drier air. Like Anthony says, wind shear is a problem. > Storms pop up and collapse most of the time. Nevertheless, they are quite > spectacular and huge. > > Jimmy Deguara > > At 18:12 18/12/99 +0930, you wrote: > >Howdy all. > > > >Just a note for Les(USA) re: Cape figures etc. > > > >Darwins for today was 1929 with a Lftx of -4.8 that was at 0Z. > > > >I will try and keep an eye on every sounding to see what sort of figures > >relate to weather events up here - I know that there is a trough > >approaching us due Monday - will be interesting to see how that will > >effect figures etc. > > > >Paul at Darwin. > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > 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------------------------------ 030 X-Sender: astroman at mail.chariot.net.au X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58 Date: Sat, 18 Dec 1999 19:36:14 +1030 To: aussie-weather at world.std.com From: astroman [astroman at chariot.net.au] Subject: aus-wx: New pictures added Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all, I have added 10 more pictures to the Gallery area, you can find them through the Gallery area (funnily enough) then click on Andrew Wall's Gallery and your there :) or you can do it the easy way and follow this URL: http://sastorms.virtualave.net All pictures were taken about 4 weeks ago, when several pulse storms went through the Adelaide general area. Andrew Wall State representative for S.A. and N.T. Webmaster of The official South Australian Severe Weather watch homepage. SASW - http://sastorms.virtualave.net ASWA Inc. - 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------------------------------ 031 X-Sender: jdeguara at pop.ihug.com.au X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58 Date: Sat, 18 Dec 1999 20:14:48 +1100 To: aussie-weather at world.std.com From: Jimmy Deguara [jdeguara at ihug.com.au] Subject: Re: aus-wx: was Explain please...now info for Les etc.... Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Sorry Paul, that is what I was also trying to do, add more evidence to your argument. I simply thought Leslie had made an assumption when he had talked about the tropics and comparing it with Darwin. So my comment was more in favour of your CAPE values. I believe that the area I mentioned would be great to chase because of the high CAPE values and the low LI given the right conditions. Of course, you would need the roads. Jimmy Deguara At 18:37 18/12/99 +0930, you wrote: >Hi Jimmy . I wanst talking about storms - Les was unaware that our >Tropical areas can get CAPEs above several '00's - just letting him know >what sort of values thats all. > >Jimmy Deguara wrote: > > > > Paul, I believe that the LI values and associated CAPE values for the > > region around Darwin to be quite high. I think the best storms are usually > > a few hundred kilometres generally S of Darwin where you can get > > interaction with drier air. Like Anthony says, wind shear is a problem. > > Storms pop up and collapse most of the time. Nevertheless, they are quite > > spectacular and huge. > > > > Jimmy Deguara > > > > At 18:12 18/12/99 +0930, you wrote: > > >Howdy all. > > > > > >Just a note for Les(USA) re: Cape figures etc. > > > > > >Darwins for today was 1929 with a Lftx of -4.8 that was at 0Z. > > > > > >I will try and keep an eye on every sounding to see what sort of figures > > >relate to weather events up here - I know that there is a trough > > >approaching us due Monday - will be interesting to see how that will > > >effect figures etc. > > > > > >Paul at Darwin. > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > > 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------------------------------ 032 Date: Sat, 18 Dec 1999 22:18:37 +1100 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: [Fwd: Re: aus-wx: Powder snow] Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hello Everyone Its a long time since I have posted anything, its mainly due to new work commitments of the tourist season. I have enjoyed the more challenging theory and associated discussion it has produced. Please keep sending it, as it is not boring! Lindsay we have snow forecast down to 900m tonight. Chas Strahan Tasmania -------- Original Message -------- >Subject: Re: aus-wx: Powder snow >Date: Fri, 17 Dec 1999 13:43:36 -0800 >From: Lindsay >Reply-To: aussie-weather at world.std.com >To: aussie-weather at world.std.com >References: <31A0DED1E83FD3118A4B00805F8584DD1E837A at NTLS0013> ><017501bf46bb$a07ae320$de2208d2 at ab> <385A71AA.6FC2 at lisp.com.au> ><38599274.3D2B17AF at telstra.com.au> Feel free to describe more Michael. God I'm talking about snow in the first month of summer! But hey, we can get some form of snow here over most months, well not Dec/Jan/Feb I guess. The snow at Oberon last June was definately good enough for skiing. I haven't seen snow like that outside of the Aussie Alps before. Any body got records of snow falls at Oberon? Lindsay Pearce. PS: Unzipped your OBS800M.ZIP no worries too, thanks. Michael Scollay wrote: > > Lindsay wrote: > > > > For Michael Scollay and others in the "snow know" > > > > I was reading about The Rocky Mountains snow fields (Colorado) > > and the amount of powder snow they receive there. The article > > said that Australia rarely gets more than a few centimetres > > of powder snow over a hard base. > > > > Is this true? > > > > I thought that at times after a fresh dump it could be quite > > powdery for a day or so...just wondering. > > First of all, the author of that arctical is talking off > the top of his hat with a load of crap. I'll take him out > on the main range almost any day in July/August and laugh > at him/her buried in Aussie powder over his head but with > one qualification - the conditions have got to be spot on. > > Secondly, I've skiied "powder" in Colorado, Utah and France. > There's nothing like the lightness of Utah dry snow which > is the other name for "powder" with its huge lightly-packed > classic snow-crystaline structure. Now that is a rare sight > in Australia as our dry snow tends to be more tightly > packed with crystals not quite as large. > > I could describe more (favourite subject) later... > > Michael Scollay mailto:michael.scollay at telstra.com.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------------------------------ 033 X-Sender: skerans at mail.cth.com.au X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.5 (32) Date: Sat, 18 Dec 1999 22:07:20 +0000 To: aussie-weather at world.std.com From: Sel Kerans [skerans at mail.cth.com.au] Subject: aus-wx: Signing off, for a short time... Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hello folks, Jumping off the email list for a while - going to the USA for 4 weeks, armed with a new camera and extra lenses. Hope to have some great shots for you all in the new year. All the best for the festive season and the new year - looks like being a good one for cyclones? All is rainy here in QLD - very damp and quite cool. Cheers, Sel. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Sel Kerans Coordinator \|/ &&&&& Project Atmosphere Australia On-line -0- .--_|\ "/" WWW: http://www.schools.ash.org.au/paa /|\ / \ \ Email: s.kerans at mail.cth.com.au \_.--\_/ EQ: sel.kerans at bribislashs.qld.edu.au v PAA: paa at bribislashs.qld.edu.au ph 07 3408 3588 fax 07 3408 3088 *** Now taking registrations from schools around the world *** *** On-line activities scheduled for March, April, May 2000 *** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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: 991218.htm
Updated: 22 December 1999 |
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