#976098 - 18/03/2011 15:36
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: Ben]
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Weatherzone Addict
Registered: 10/07/2006
Posts: 2099
Loc: Double Bay, Sydney, NSW
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Great footage you've got there CP, reminds me of an encounter I had with a LP supercell in December 2004 (can't remember the date) I vividly recall me and my bro sitting on the front porch of his place in Greta watching this spectacular LP supercell pass within a few km's of his place, it seriously looked like a scene out of independence day when the ships first arrive! It's still to this day one of my most memorable weather events.
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#976100 - 18/03/2011 16:19
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: CoastalStorm22]
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Weather Freak
Registered: 01/03/2011
Posts: 290
Loc: Dee Why
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Awesome CP. I love those moments before a solid storm hits, when you just take in the enormity and power of it ..then realise you're about to get smashed! Plus you're generally still dry and can enjoy the lightning more.
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#976117 - 18/03/2011 17:14
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: Ben]
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Weatherzone Addict
Registered: 04/10/2008
Posts: 1051
Loc: Old bar NSW east of taree
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Yeah the noise is a little overbearing after watching it several times over during the night,. I downloaded a trial of videopad professional (sweet program once i figure it all out)..The am static was literally constant for over an hour.. When i can i will upload the unedited version of Sc#2 amoung the rest of the footage. The first one took on awesome structure Lp style and done this very rapidly,. But its rfd was nothing short of WET..and windy, That'll be the next one i work on after a nap. When i can i'll also edit out sound etc as im pretty sure some of my ol mans yabbering (was his first chase with me) would put the most hypo of addhhhd suffers to sleep quick smart,. ohh and the language is sometimes a tad non kiddy-work friendly  I've seen a couple of LP sc's in the past but not as gorgeous as that one thats for sure..as per the second Sc ive got a mate within the Ses doing some canvassing for me re damage etc as im pretty sure that on a couple of times there was funnel meet ground,.The Lp would have done a little damage as the straight liners were hard fast and nothing short of furious,. though the distance away made getting clean quality of the lowering hard -that and i hardly paid attention to the vidcam for the most part- Ive also taken a frame by frame grab of the entire vid and a few photos are showing either funnels,.naders and some nice gustnadoes when i was mobile abiet very hard to pick on the first few runs,. once ive mastered this editing side of things (turns a hobby into a fulltime job!) i will try and mark out each area of interest. Though in real time the roations is rather evident. I have a few people looking over the footage and giving me there input once they finish. Naders or not it was up there with one of the better ive seen for a looong time.
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#976128 - 18/03/2011 18:14
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: Ben]
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Weatherzone Addict
Registered: 10/07/2006
Posts: 2099
Loc: Double Bay, Sydney, NSW
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That would be this one CoastalStorm http://www.sydneystormchasers.com/node/584. Great day that one, got a classic supercell with 7cm hail, followed by that one (we were on the wrong side of the storm to see the structure for that one unfortunately) Ah yes, that's the one alright, ahhh good times! I actually got caught in the first storm at Mt Vincent/Mulbring, thankfully i only managed hail to 4cm so must have missed the core on that one, still managed some hefty dings in the car tho.
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#976139 - 18/03/2011 18:55
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: core puncher]
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Weatherzone Addict
Registered: 06/12/2004
Posts: 1104
Loc: SE Qld
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Great work core puncher. Thanks for putting in the time to get these photos and video up. The first storm looks like an LP supercell to me, or maybe a "drier type" classic supercell. Looks to be a lot of precipitation falling quite close to the updraft base in the forward flank downdraft. Nice looking storm either way. I love storms punching up into clear blue sky.
I like the time lapse of the second storm alot. Nice looking wall clould there. I would guess that the storm was intially a classic supercell around Putty. At that time the storm was quite compact and there was a small hook or inflow notch for a few scans. After that, I think a transition to a HP supercell occurred. In your time lapse, it can be seen that there was a huge amount of precipitation falling the RFD. I think therefore that it was probably a HP supercell by the time it got to you.
Interesting that two very different supercells can occur so close in time and location.
Edited by MC Thomas (18/03/2011 19:01)
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#976141 - 18/03/2011 18:58
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: MC Thomas]
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Weather Freak
Registered: 02/02/2011
Posts: 461
Loc: Melbourne, Corryong, Canberra,...
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Great footage and stories all around guys... well done 
_________________________
Best storms: 2003 (JAN 8, DEC 2-3); 2004 (JAN 21); 2005 (JAN 20); 2006 (JAN 26); 2007 (SEPT 27, DEC 20); 2008 (JAN 11-12); 2009 (JAN 22, NOV 26); 2010 (FEB 11, MAR 6, DEC 4 & 8); 2011 (JAN 21-22, FEB 4-5, SEPT 28, NOV 9, DEC 24-25); 2012 (JAN 11, FEB 16)
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#976157 - 18/03/2011 19:44
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: aussiestormfreak]
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Weatherzone Addict
Registered: 06/12/2004
Posts: 1104
Loc: SE Qld
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Also, I thought I should mention this. Yesterday I mentioned possible hail spikes or Three Body Scatter Spike (TBSS) from the coastal supercell. Now I am not too sure if that is correct. These "spikes" are definitely artifacts, just what is causing them is confusing. These spikes do seem to occur after intense storm cores and are in line with the radar beam. This fits with a typical hail spike. They are, however, much larger than one would expect. This is taken from this website http://www4.ncsu.edu/~nwsfo/storage/cases/20081001/
"The Three Body Scatter Spike (TBSS) radar signature is generally a 10-30 km"
Yesterday, these "spikes" were up to 200 km long! I am confused.
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#976177 - 18/03/2011 20:37
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: Funnel Cloud]
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Weatherzone Addict
Registered: 10/01/2006
Posts: 1610
Loc: Mona Vale, northern beaches , ...
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Great work guys, cheers for sharing. Looks like there are more showers moving in from the east, might have a couple of mill's by morning.
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#976224 - 18/03/2011 23:19
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: core puncher]
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Weatherzone Addict
Registered: 04/10/2008
Posts: 1051
Loc: Old bar NSW east of taree
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#976263 - 19/03/2011 07:27
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: core puncher]
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Weatherzone Addict
Registered: 25/09/2001
Posts: 1146
Loc: Petersham Nth
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Hammered down here at 6am. 35.5mm since 9am.
_________________________
(H) Petersham (North), Inner West, Sydney. Rainfall YTD 578.7mm (2012: 1113mm) (W) Neutral Bay, Lower North Shore, Sydney.
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#976272 - 19/03/2011 08:26
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: The 1st Ben]
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Cloud Gazer
Registered: 17/01/2011
Posts: 29
Loc: Tumbi Umbi
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We had our first decent rain in weeks this morning as well, we actually had puddles of water in the back yard. Had to put a raincoat on the dog to get him outside, and I haven't had to do that for months! I haven't taken the measurements yet but this is probably the most rainfall that we have had since January.
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#976282 - 19/03/2011 09:44
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: Canfeleq]
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Weather Freak
Registered: 05/05/2010
Posts: 468
Loc: Crookhaven Heads N.S.W 14m AS...
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Guage ticked over for 54mms to 9am with some heavy falls starting at around 1.30am,63mms/hr at one stage. Heavy falls must have been localized as stations around us have recored much less than here. ABC radio reported 43mms at Berry. No rain since sunrise,overcast,20.7c,wind ESE around 15km/hr & baro 1015 here atm.
_________________________
Rainfall: March 2013 44mms/ APRIL 2013 MTD 74mms/ April 2012 total 103.5mms/ TOTAL YTD 398mms./ 2012 total 976.5mms “The world is big and I want to have a good look at it before it gets dark.” John Muir
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#976293 - 19/03/2011 10:13
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: kizz]
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Weatherzone Addict
Registered: 10/07/2006
Posts: 2099
Loc: Double Bay, Sydney, NSW
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Wow, some great falls over the nothern beaches area this morning, Marts must be pleased with his 70mm+!! A nice 13mm just up the road here in Rose Bay which would have to be the best fall since about December i think.
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#976300 - 19/03/2011 10:38
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: CoastalStorm22]
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Weatherzone Addict
Registered: 31/01/2008
Posts: 3344
Loc: Southern Sydney
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Well I never, rain moving in from the east! Very surprised at some of those totals, orographic enhancement doing its thing in the usual places.
Looks like it will be short lived though as another warm westerly regime moves in next week. Still may not be enough to save Obs Hill from its driest March on record, just 10 mm there.
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#976305 - 19/03/2011 10:53
Re: NSW Trough, Rain and Thunderstorms 10th-17th March 2011
[Re: Southerly_Buster]
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Meteorological Motor Mouth
Registered: 05/10/2002
Posts: 8587
Loc: Overlooking ACT at 848m
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It's pouring here, just started up about half an hour ago. So much for all my painting plans. SE wind, and this seems easterly too, very low clouds, so low the radar can't see them.
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