|
Storm News
[Index][Aussie-Wx] |
Australian Weather Mailing List Archives: Wednesday, 15 March 2000 |
From Subject
--------------------------------------------------------------------------------------
001 "Leslie R. Lemon" [lrlemon at compuserve.com] DD's
002 "Les Crossan" [les.crossan at virgin.net] DD's
003 Don White [donwhite at ozemail.com.au] Tuesday's storms
004 Anthony Cornelius [cyclone at flatrate.net.au] DD's
005 Anthony Cornelius [cyclone at flatrate.net.au] Tornadoes
006 Anthony Cornelius [cyclone at flatrate.net.au] Tornadoes
007 Harald Richter [hrichter at enterprise.nssl.noaa Tornadoes (fwd)
008 "Zac" [mnk at Dingoblue.net.au] Tuesday's storms
009 peter matters [pmatters at eck.net.au] Storm Pics
010 Ira Fehlberg [jra at upnaway.com] Tornadoes (fwd)
011 Don White [donwhite at ozemail.com.au] Tuesday's storms
012 Carl Smith [carls at ace-net.com.au] TC Olga ? :)
013 Jimmy Deguara [jdeguara at ihug.com.au] 9th March Pics - Wall Cloud?????
014 Matt Smith [disarm at braenet.com.au] 9th March Pics - Wall Cloud?????
015 "Michael Thompson" [michaelt at ozemail.com.au] 9th March Pics - Wall Cloud?????
016 Jane ONeill [cadence at rubix.net.au] Last chance for ASWA windcheaters
017 "David Croan" [wxbustchase at hotmail.com] 9th March Pics - Wall Cloud?????
018 Ben Quinn [bodie at flatrate.net.au] Tornadoes (fwd)
019 Andrew Puddifer [typhoon at ihug.com.au] New email address.
--------------------------------------------------------------------------------------
001
Date: Tue, 14 Mar 2000 13:18:08 -0500
From: "Leslie R. Lemon" [lrlemon at compuserve.com]
Subject: Re: aus-wx: DD's
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 NAA01766
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Phil.....this is great stuff! Thanks much. I am not sure I am convinced
the dark lines are actually from dust devils but it is plausible.
But, at any rate, this is a great site. Thanks much!
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------------------------------
002
From: "Les Crossan" [les.crossan at virgin.net]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: DD's
Date: Tue, 14 Mar 2000 18:52:49 -0000
Organization: Cosmic EuroCon - note all times are always GMT
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
----- Original Message -----
From: Phil Bagust [paisley at cobweb.com.au]
To: [aussie-weather at world.std.com]
Sent: Tuesday, March 14, 2000 12:32 PM
Subject: Re: aus-wx: DD's
> Try this for some 'off planet' dust devil action
Can we hire a rocket so we can go chase - perhaps NASA / ESA / the Russians,
Chinese or CSIRO could give us some idea of the rates????
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------------------------------
003
Date: Wed, 15 Mar 2000 07:03:26 +1000
From: Don White [donwhite at ozemail.com.au]
X-Mailer: Mozilla 4.5 [en] (Win98; I)
X-Accept-Language: en
To: Aussie Weather [aussie-weather at world.std.com]
Subject: aus-wx: Tuesday's storms
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Some localised very heavy rain in the lower Hunter yesterday afternoon.
Nobby's Head had 19 mm in an hour while the suburbs of Rankin Springs -
to the Sw of the Newcastle CBD had 49 mm in less than 60 minutes at that
time.
What about Charlestown?
Don W.
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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: Wed, 15 Mar 2000 06:37:10 +1000
From: Anthony Cornelius [cyclone at flatrate.net.au]
X-Mailer: Mozilla 4.72 [en] (Win98; I)
X-Accept-Language: en
To: aussie-weather at world.std.com
Subject: Re: aus-wx: DD's
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi Leslie,
Agreed - but it certainly kept me up last night thinking about it...
"Leslie R. Lemon" wrote:
>
> Phil.....this is great stuff! Thanks much. I am not sure I am convinced
> the dark lines are actually from dust devils but it is plausible.
>
> But, at any rate, this is a great site. Thanks much!
>
> 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------------------------------
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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: Wed, 15 Mar 2000 06:58:54 +1000
From: Anthony Cornelius [cyclone at flatrate.net.au]
X-Mailer: Mozilla 4.72 [en] (Win98; I)
X-Accept-Language: en
To: aussie-weather at world.std.com
Subject: Re: aus-wx: Tornadoes
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi Jason,
I used to believe that SE QLD, Wide Bay and Darling Downs districts were
the only 'hot spots' for severe thunderstorms. It was only when I was
able to get onto the internet and look at sat pics that I realised that
inland Australia also gets their fair share of storms. One interesting
note is that central QLD occassionally does get upper level cold pools
that move northwards. By the time they reach the east coast near SE QLD
often they're in a very weakened state. DP's can also get quite high,
in the order of the low 20's. They'd probably be even higher if it
wasn't for the Great Dividing Range - as some moisture is lost when air
is forced to rise over the mountains, condenses, and then sinks again.
If only we had 4000-5000m ranges west of central Queensland, we'd really
be having some fun :-) The mountains help induce an upper level
trough. As air moves towards to the mountain range, the depth of the
column of air is forced to be compressed, through the absolute vorticity
equation (zeta + f)/D = Constant
Where zeta is the relative vorticity, f is the coriolis parameter that
remains constant at a given latitude, and D is the depth of the column
of air. The constant, and the coriolis parameter are negative (from
memory), in the southern hemisphere.
As D decreases, zeta must become more positive to compensate, and an
anti-cyclonic curve in the air stream occurs, so an upper level ridge
will sit over the first half of the mountain range, and also for a
distance 'x' before it. As D increases, zeta must become more negative
to compensate, and a cyclonic curve in the jet is induced. Thus, we
have an upper level trough forming on the lee-side of the mountain
range.
This would certainly be an advantage for us :)
But you're reasoning about the population density is certainly correct.
Towns are so far apart there, in the order of 50-100km apart on the
Downs, to 150-200km apart when you get out west. Fact is, if you were
to calculate the area that is populated, vs the area that is
unpopulated, I think you'd come up with a figure near 99.8% of the
region being unpopulated (not including a farm that takes up 5,000acres
- as there's rarely some one always there over the entire farm!
Anthony Cornelius
Jason Smith wrote:
>
> I was talking to a bloke who used to live in Charleville, and he told me he had seen tornado tracks before on his parents property more than once.
> His description - they appeared after severe thunderstorms, where fairly narrow (100m wide or so) and snapped trees clean off.
>
> I'm starting to think that inland Queensland gets quite a lot of tornadoes, but they all go unreported due to the lack of population. I've heard that SE QLD is supposed to be a storm hotspot, but how much has that got to do with the population density????
>
> I've also just got an SLR (yay)
>
> Pommy
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> 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------------------------------
006
Date: Wed, 15 Mar 2000 07:39:34 +1000
From: Anthony Cornelius [cyclone at flatrate.net.au]
X-Mailer: Mozilla 4.72 [en] (Win98; I)
X-Accept-Language: en
To: aussie-weather at world.std.com
Subject: Re: aus-wx: Tornadoes
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
I might add something before I stir up a hornets nest, the first line is
meant to read "I used to believe that SE QLD, Wide Bay and the Darling
Downs distrits were the only districts in Queensland that were 'hot
spots' for severe thunderstorms.
Forgot the state :-)
Anthony Cornelius wrote:
>
> Hi Jason,
>
> I used to believe that SE QLD, Wide Bay and Darling Downs districts were
> the only 'hot spots' for severe thunderstorms. It was only when I was
> able to get onto the internet and look at sat pics that I realised that
> inland Australia also gets their fair share of storms. One interesting
> note is that central QLD occassionally does get upper level cold pools
> that move northwards. By the time they reach the east coast near SE QLD
> often they're in a very weakened state. DP's can also get quite high,
> in the order of the low 20's. They'd probably be even higher if it
> wasn't for the Great Dividing Range - as some moisture is lost when air
> is forced to rise over the mountains, condenses, and then sinks again.
>
> If only we had 4000-5000m ranges west of central Queensland, we'd really
> be having some fun :-) The mountains help induce an upper level
> trough. As air moves towards to the mountain range, the depth of the
> column of air is forced to be compressed, through the absolute vorticity
> equation (zeta + f)/D = Constant
>
> Where zeta is the relative vorticity, f is the coriolis parameter that
> remains constant at a given latitude, and D is the depth of the column
> of air. The constant, and the coriolis parameter are negative (from
> memory), in the southern hemisphere.
>
> As D decreases, zeta must become more positive to compensate, and an
> anti-cyclonic curve in the air stream occurs, so an upper level ridge
> will sit over the first half of the mountain range, and also for a
> distance 'x' before it. As D increases, zeta must become more negative
> to compensate, and a cyclonic curve in the jet is induced. Thus, we
> have an upper level trough forming on the lee-side of the mountain
> range.
>
> This would certainly be an advantage for us :)
>
> But you're reasoning about the population density is certainly correct.
> Towns are so far apart there, in the order of 50-100km apart on the
> Downs, to 150-200km apart when you get out west. Fact is, if you were
> to calculate the area that is populated, vs the area that is
> unpopulated, I think you'd come up with a figure near 99.8% of the
> region being unpopulated (not including a farm that takes up 5,000acres
> - as there's rarely some one always there over the entire farm!
>
> Anthony Cornelius
>
> Jason Smith wrote:
> >
> > I was talking to a bloke who used to live in Charleville, and he told me he had seen tornado tracks before on his parents property more than once.
> > His description - they appeared after severe thunderstorms, where fairly narrow (100m wide or so) and snapped trees clean off.
> >
> > I'm starting to think that inland Queensland gets quite a lot of tornadoes, but they all go unreported due to the lack of population. I've heard that SE QLD is supposed to be a storm hotspot, but how much has that got to do with the population density????
> >
> > I've also just got an SLR (yay)
> >
> > Pommy
> >
> > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> > 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------------------------------
007
From: Harald Richter [hrichter at enterprise.nssl.noaa.gov]
Subject: Re: aus-wx: Tornadoes (fwd)
To: aussie-weather at world.std.com (Australian Severe Weather Association)
Date: Tue, 14 Mar 2000 15:56:17 -0600 (CST)
X-Mailer: ELM [version 2.5 PL3]
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi there,
Anthony stated nicely ...
> I used to believe that SE QLD, Wide Bay and Darling Downs districts were
> the only 'hot spots' for severe thunderstorms. It was only when I was
> able to get onto the internet and look at sat pics that I realised that
> inland Australia also gets their fair share of storms. One interesting
> note is that central QLD occassionally does get upper level cold pools
> that move northwards. By the time they reach the east coast near SE QLD
> often they're in a very weakened state. DP's can also get quite high,
> in the order of the low 20's. They'd probably be even higher if it
> wasn't for the Great Dividing Range - as some moisture is lost when air
> is forced to rise over the mountains, condenses, and then sinks again.
I wish someone would do a ``satellite climatology'' of deep convection
in Australia subject to being in a ``supercellular'' shear environment
(this would knock off most of the tropical convection).
I believe we would find that the extratropical convective maximum is
NOT right along the coasts.
Then Anthony stole my future post ...
> If only we had 4000-5000m ranges west of central Queensland, we'd really
> be having some fun :-) The mountains help induce an upper level
> trough. As air moves towards to the mountain range, the depth of the
> column of air is forced to be compressed, through the absolute vorticity
> equation (zeta + f)/D = Constant
>
> Where zeta is the relative vorticity, f is the coriolis parameter that
> remains constant at a given latitude, and D is the depth of the column
> of air. The constant, and the coriolis parameter are negative (from
> memory), in the southern hemisphere.
>
> As D decreases, zeta must become more positive to compensate, and an
> anti-cyclonic curve in the air stream occurs, so an upper level ridge
> will sit over the first half of the mountain range, and also for a
> distance 'x' before it. As D increases, zeta must become more negative
> to compensate, and a cyclonic curve in the jet is induced. Thus, we
> have an upper level trough forming on the lee-side of the mountain
> range.
Potential vorticity (=``const'' above) conservation in a homogeneous
fluid is (despite the mouthful) indeed the simplest model that I have
seen for the process of lee cyclogenesis. And cyclones/troughs do
like to form east of mid-latitude mountain ranges. I am amazed
at how many lee cyclones get shed from the Rocky Mountains in the
US. I have a funny feeling that without the Rockies the
Plains states in the US would have
- no more lee cyclones
- reduced moisture return into the region
- weakended ``cap'' that stores the juice for a few
select monster storms
- no lee cyclones = no backed winds at the surface =
deteriorated shear profile
- less upper-level destabilization and support for lifting
etc.
Also, with an increase in population in the US the tornado
bullseye has moved west to longitudes barely a few hundred
kilometres east of the mountains.
Harald (in mountain mode)
--
---------------------------------------------
Harald Richter
National Severe Storms Laboratory
1313 Halley Circle
Norman, OK 73069
ph.: (405) 366-0430
fax: (405) 579-0808
email: hrichter at enterprise.nssl.noaa.gov
---------------------------------------------
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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
From: "Zac" [mnk at Dingoblue.net.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: Tuesday's storms
Date: Wed, 15 Mar 2000 10:56:32 +1000
X-Mailer: Microsoft Outlook Express 5.00.2314.1300
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Don
Are you referring to Rankin Springs (NSW Riverina) or Rankin Park (Newcastle
Metro)?
Max
----- Original Message -----
From: Don White [donwhite at ozemail.com.au]
To: Aussie Weather [aussie-weather at world.std.com]
Sent: Wednesday, March 15, 2000 7:03 AM
Subject: aus-wx: Tuesday's storms
> Some localised very heavy rain in the lower Hunter yesterday afternoon.
> Nobby's Head had 19 mm in an hour while the suburbs of Rankin Springs -
> to the Sw of the Newcastle CBD had 49 mm in less than 60 minutes at that
> time.
> What about Charlestown?
> Don W.
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> 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
Date: Wed, 15 Mar 2000 03:40:17 +1100
From: peter matters [pmatters at eck.net.au]
X-Mailer: Mozilla 4.7 [en] (Win98; I)
X-Accept-Language: en
To: aussie-weather at world.std.com
Subject: aus-wx: Storm Pics
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi all,
I have put pics I took back on the 2nd of Feb of the storms
Macca chased NW of Seymour, under which he saw rotation and a funnel
cloud.
Happy viewing! The url is http://pmatters.eck.net.au
Peter (Didjman)
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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
X-Sender: jra at upnaway.com
X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32)
Date: Wed, 15 Mar 2000 12:55:54 +0800
To: aussie-weather at world.std.com
From: Ira Fehlberg [jra at upnaway.com]
Subject: Re: aus-wx: Tornadoes (fwd)
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
At 15:56 14/03/00 -0600, you wrote:
>
>Hi there,
>
>I wish someone would do a ``satellite climatology'' of deep convection
>in Australia subject to being in a ``supercellular'' shear environment
>(this would knock off most of the tropical convection).
>I believe we would find that the extratropical convective maximum is
>NOT right along the coasts.
Iam currently and have been for the last year or so doing such a map to
show areas in Australia more prone to supercells with the help of the
severe weather section of the BOM here. This is based on thunder days
combined with days with suffcient shear and confirmed supercell days. Its
been an on & off affair as its not easy to get a time to go in there when
we are both free, but iam getting there and hope to have some sort of guide
by about mid year. There is one flaw with this map though. Iam finding that
some days that have produced excellent supercells here in WA and also in
other states (eg april 14 sydney supercell) is that these days never really
had what would be classed as a good setup for supercells yet they did occur
none the less.
Ira Fehlberg
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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: Wed, 15 Mar 2000 15:56:48 +1000
From: Don White [donwhite at ozemail.com.au]
X-Mailer: Mozilla 4.5 [en] (Win98; I)
X-Accept-Language: en
To: aussie-weather at world.std.com
Subject: Re: aus-wx: Tuesday's storms
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Zac...
Heavy storms in Newcastle area - the report was for Rankin Park
(Newcastle metro)
Don
Zac wrote:
>
> Don
>
> Are you referring to Rankin Springs (NSW Riverina) or Rankin Park (Newcastle
> Metro)?
>
> Max
>
> ----- Original Message -----
> From: Don White
> To: Aussie Weather
> Sent: Wednesday, March 15, 2000 7:03 AM
> Subject: aus-wx: Tuesday's storms
>
> > Some localised very heavy rain in the lower Hunter yesterday afternoon.
> > Nobby's Head had 19 mm in an hour while the suburbs of Rankin Springs -
> > to the Sw of the Newcastle CBD had 49 mm in less than 60 minutes at that
> > time.
> > What about Charlestown?
> > Don W.
> > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> > 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------------------------------
012
X-Sender: carls at ford.ace-net.com.au
Date: Wed, 15 Mar 2000 16:05:38 +1000
To: aussie-weather at world.std.com
From: Carl Smith [carls at ace-net.com.au]
Subject: Re: aus-wx: TC Olga ? :)
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi All.
Here is an update.
Regards,
Carl.
IDW50W18
40:0:1:24:17S119E999:11:00
SECURITE
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING
CENTRE PERTH AT 0423UTC 15 MARCH 2000
GALE WARNING FOR THE WESTERN AREA
SITUATION
Tropical low with central pressure 1000hPa located at 0400UTC
Within 60 nautical miles of
Latitude seventeen decimal zero south [17.0S]
Longitude one hundred and eighteen decimal seven east [118.7E]
moving westsouthwest at 6 knots.
AREA AFFECTED
Low expected to develop into a cyclone over the next 12 to 24 hours. Expect
winds increasing to 30/45 knots within 100 nautical miles of centre, causing
rough to very rough seas, moderate swell.
FORECAST
At 1600UTC 15 March. 17.0 south 117.3 east 1000hPa
At 0400UTC 16 March. 17.3 south 115.5 east 995hPa
Next warning issued at 1100 UTC 15 March 2000.
WEATHER PERTH
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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: Wed, 15 Mar 2000 17:28:22 +1100
To: aussie-weather at world.std.com
From: Jimmy Deguara [jdeguara at ihug.com.au]
Subject: aus-wx: 9th March Pics - Wall Cloud?????
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi everyone,
I have scanned 3 of the sequence of photographs which are below:
http://www.australiansevereweather.simplenet.com/photography/photos/2000/030
9jd09.jpg
http://www.australiansevereweather.simplenet.com/photography/photos/2000/030
9jd10.jpg
http://www.australiansevereweather.simplenet.com/photography/photos/2000/030
9jd12.jpg
Don't try any other links as these are the only photographs I scanned. I am
off to a meeting. These photographs were taken on the same day of the chase
Michael Thompson did on the 9th March 2000. But my view and that of Dann
Weatherhead was from the rear.
Question I ask: is it a wall cloud or just arcus cloud?
Enjoy.
Jimmy Deguara
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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
X-Sender: disarm at mail.braenet.com.au
X-Mailer: Windows Eudora Pro Version 3.0 (32)
Date: Wed, 15 Mar 2000 18:05:34 +1100
To: aussie-weather at world.std.com
From: Matt Smith [disarm at braenet.com.au]
Subject: aus-wx: 9th March Pics - Wall Cloud?????
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
I'd have to say, based on those 3 photo's, that yes, it is. But sometimes
photos can look sus... I can't really say as I wasnt there.. i'd have to
see video or something.
Matt Smith
>
>Hi everyone,
>
>I have scanned 3 of the sequence of photographs which are below:
>
>http://www.australiansevereweather.simplenet.com/photography/photos/2000/030
>9jd09.jpg
>
>http://www.australiansevereweather.simplenet.com/photography/photos/2000/030
>9jd10.jpg
>
>http://www.australiansevereweather.simplenet.com/photography/photos/2000/030
>9jd12.jpg
>
>Don't try any other links as these are the only photographs I scanned. I am
>off to a meeting. These photographs were taken on the same day of the chase
>Michael Thompson did on the 9th March 2000. But my view and that of Dann
>Weatherhead was from the rear.
>
>Question I ask: is it a wall cloud or just arcus cloud?
>
>Enjoy.
>
>Jimmy Deguara
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> 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------------------------------
015
From: "Michael Thompson" [michaelt at ozemail.com.au]
To: [aussie-weather at world.std.com]
Subject: Re: aus-wx: 9th March Pics - Wall Cloud?????
Date: Wed, 15 Mar 2000 20:38:07 +1000
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 will have some video from under this storm to show at Saturday's meeting.
The picture I took from pheasants nest
http://thunder.simplenet.com/chase/090300b.jpg was around 5.15 - 5.30pm,
similar to Jimmy's I think.
Michael
----- Original Message -----
From: Matt Smith [disarm at braenet.com.au]
To: [aussie-weather at world.std.com]
Sent: Wednesday, 15 March 2000 17:05
Subject: aus-wx: 9th March Pics - Wall Cloud?????
> I'd have to say, based on those 3 photo's, that yes, it is. But sometimes
> photos can look sus... I can't really say as I wasnt there.. i'd have to
> see video or something.
>
> Matt Smith
>
>
> >
> >Hi everyone,
> >
> >I have scanned 3 of the sequence of photographs which are below:
> >
>
>http://www.australiansevereweather.simplenet.com/photography/photos/2000/03
0
> >9jd09.jpg
> >
>
>http://www.australiansevereweather.simplenet.com/photography/photos/2000/03
0
> >9jd10.jpg
> >
>
>http://www.australiansevereweather.simplenet.com/photography/photos/2000/03
0
> >9jd12.jpg
> >
> >Don't try any other links as these are the only photographs I scanned. I
am
> >off to a meeting. These photographs were taken on the same day of the
chase
> >Michael Thompson did on the 9th March 2000. But my view and that of Dann
> >Weatherhead was from the rear.
> >
> >Question I ask: is it a wall cloud or just arcus cloud?
> >
> >Enjoy.
> >
> >Jimmy Deguara
> >
> > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> > 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------------------------------
016
Date: Wed, 15 Mar 2000 21:04:15 +1100
From: Jane ONeill [cadence at rubix.net.au]
X-Mailer: Mozilla 4.05 [en] (Win95; I)
To: Aussie-wx [aussie-weather at world.std.com]
Subject: aus-wx: Last chance for ASWA windcheaters
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Have I reminded you lately?
If you want to order a tshirt, polo shirt or fleecy lined windcheater,
you really are going to have to do it this week!!!! Money & order needs
to be with your rep by Sunday night at the absolute latest...to check it
out one final time
http://www.rubix.net.au/~cadence/fashion.htm
Any questions, please email me directly at cadence at rubix.net.au
--------------------------------
Jane ONeill
cadence at rubix.net.au
Melbourne Storm Chasers
http://www.rubix.net.au/~cadence
ASWA - Victoria
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------------------------------
017
X-Originating-IP: [203.35.254.2]
From: "David Croan" [wxbustchase at hotmail.com]
To: aussie-weather at world.std.com
Cc: bustchase at yahoo.com
Subject: Re: aus-wx: 9th March Pics - Wall Cloud?????
Date: Wed, 15 Mar 2000 22:14:21 EST
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi all,
Jimmy wrote:
>
>Hi everyone,
[snip pic links]
>I have scanned 3 of the sequence of photographs which are below:
These photographs were taken on the same day of
>the chase
>Michael Thompson did on the 9th March 2000. But my view and that of Dann
>Weatherhead was from the rear.
>
>Question I ask: is it a wall cloud or just arcus cloud?
Im not sure from that distance but what a spectacular storm Jimmy,
particularly pic 10!.
Actually it does appear as though it formed under the main updraft and, from
that pic, the tilt into it might be taken to suggest that it was the result
of pulling up rather than outflow (Michael T's up close pic also shows a
lovely smooth updraft base) - what were the CGs like in this part of the
storm?. Again it is anyones guess, though if pressed I would say it is more
likely to be a wall cloud, based on what I see in the pics alone. The
question is, since a wall cloud is just a lowered updraft, was it a rotating
wall cloud at the time or during any stage of the storms life?. Storms which
appear on radar as this one did, we often assume to be supercells since they
exhibit persistent intense radar echoes. It is also noteworthy that this
storm was quite isolated and conditions were fairly favourable for
supercells.
I wonder if there is any high resolution radar imagery available since it
cant have been too far from the Sydney radar?.
______________________________________________________
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------------------------------
018
Date: Wed, 15 Mar 2000 21:51:07 +1000
From: Ben Quinn [bodie at flatrate.net.au]
X-Mailer: Mozilla 4.61 [en] (Win95; I)
X-Accept-Language: en
To: aussie-weather at world.std.com
Subject: Re: aus-wx: Tornadoes (fwd)
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi Ira, everyone..
Sounds like a great idea! But i see one main problem..
Am i right in saying that the Bureau confirm supercells by radar? If
that's true then the number of confirmed supercells in hotspots like
western NSW and QLD and southern inland WA (where there are few, no or
crappy radars) would be a fraction of what it could/should be..
The shear analysis on its own would be interesting - but then again i
guess you can have all the shear in the world and not see a cloud in the
sky (nothing to trigger storms or high caps etc etc)..
Don't take this email as an attack on your ideas - just healthy
criticism.. i'd be more than interested to hear other peoples opinions..
Ira Fehlberg wrote:
>
> At 15:56 14/03/00 -0600, you wrote:
> >
> >Hi there,
> >
>
> >I wish someone would do a ``satellite climatology'' of deep convection
> >in Australia subject to being in a ``supercellular'' shear environment
> >(this would knock off most of the tropical convection).
> >I believe we would find that the extratropical convective maximum is
> >NOT right along the coasts.
>
> Iam currently and have been for the last year or so doing such a map to
> show areas in Australia more prone to supercells with the help of the
> severe weather section of the BOM here. This is based on thunder days
> combined with days with suffcient shear and confirmed supercell days. Its
> been an on & off affair as its not easy to get a time to go in there when
> we are both free, but iam getting there and hope to have some sort of guide
> by about mid year. There is one flaw with this map though. Iam finding that
> some days that have produced excellent supercells here in WA and also in
> other states (eg april 14 sydney supercell) is that these days never really
> had what would be classed as a good setup for supercells yet they did occur
> none the less.
>
> Ira Fehlberg
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> 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------------------------------
--
Ben Quinn
The Brisbane Storm Chasers Homepage (BSCH)
http://www.bsch.simplenet.com
The Australian Weather Pages Webring
http://www.bsch.simplenet.com/webring/index.htm
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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
Date: Wed, 15 Mar 2000 18:53:19 +1000
From: Andrew Puddifer [typhoon at ihug.com.au]
X-Mailer: Mozilla 4.05 (Macintosh; I; PPC)
To: Aussie weather [aussie-weather at world.std.com]
Subject: aus-wx: New email address.
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi all,
This is my new email address!
typhoon at ihug.com.au
Regards, Andrew
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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: 000315.htm
Updated: 18 March 2000 |
[Australian Severe Weather index] [Copyright Notice] [Email Contacts] |