Storm Australian Severe Weather Forum
Severe Weather Discussion => Australian Severe Storms, Weather Events and Storm Chasing => Topic started by: Peter J on 01 January 2010, 10:54:46 AM
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Hi all,
Just got word about an hour ago - as issued by BoM:-
DN65156
Australian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
SEVERE THUNDERSTORM WARNING
for FLASH FLOODING
For people in parts of the
SOUTHERN TABLELANDS Forecast District (south of the ACT).
Issued at 3:58 pm Thursday, 31 December 2009.
Severe thunderstorms are likely to produce very heavy rainfall and flash flooding in the warning area over the next several hours. Locations which may be affected include Cooma and Bombala.
The State Emergency Service advises that people should:
* Keep clear of creeks and storm drains.
* Don't walk, ride your bike or drive through flood water.
* Unplug computers and appliances.
* Avoid using the phone during the storm.
* Stay indoors away from windows, and keep children and pets indoors as well.
* For emergency help in floods and storms, ring the SES (NSW and ACT) on 132 500.
The next warning is due to be issued by 7:00 pm.
IDS65502
Australian Government Bureau of Meteorology
South Australia Regional Office
TOP PRIORITY FOR IMMEDIATE BROADCAST
SEVERE THUNDERSTORM WARNING
for DAMAGING WIND and FLASH FLOODING
For people in the
Upper South East and parts of the
Lower South East districts.
Issued at 4:09 pm Thursday, 31 December 2009.
Severe thunderstorms are likely to produce damaging wind gusts in excess of 90 km/h in the warning area this afternoon and early evening. Very heavy rainfall and flash flooding is also possible with these thunderstorms. Locations which may be affected include Bordertown, Keith and Naracoorte.
The State Emergency Service advises that people should:
* Secure or put away loose items around your property.
* Move cars under cover or away from trees.
* Keep clear of fallen power lines.
* Don't drive, ride or walk through flood water.
* Keep clear of creeks and storm drains.
* Stay indoors, away from windows, while storms are nearby.
The next warning is due to be issued by 7:10 pm
and:
IDV65756
Australian Government Bureau of Meteorology
Victoria Regional Office
TOP PRIORITY FOR IMMEDIATE BROADCAST
SEVERE THUNDERSTORM WARNING
for DAMAGING WIND, FLASH FLOODING and LARGE HAILSTONES
For people in the Northeast, East Gippsland, Western, Alpine and parts of the Northern Country, Wimmera, North Central and West and South Gippsland Forecast Districts.
Issued at 3:46 pm Thursday, 31 December 2009.
Severe thunderstorms are likely to produce damaging winds, very heavy rainfall, flash flooding and large hailstones in the warning areas over the next several hours. Locations which may be affected include Warrnambool, Shepparton, Wangaratta, Sale, Bairnsdale and Orbost. The western area contains the more organised thunderstorms so initially is the more likely to produce all severe weather elements. Damaging wind gusts are by the far the most likely in the eastern area.
Gusts close to 100 km/h have already been reported from Dartmoor in southwestern Victoria.
The State Emergency Service advises that people should:
* Keep clear of fallen power lines.
* secure any loose objects in the vicinity of your home.
* keep away from creeks and drains.
* do not drive vehicles through flooded areas.
* stay indoors if possible.
* Avoid using the phone during the storm.
* if you are outside, avoid sheltering under trees
* listen to the radio for storm updates
* switch off your computer and electrical appliances
The next warning is due to be issued by 6:50 pm.
The trough/front is already approaching the Warrnambool area to the south-west of me, and it is likely to strengthen as it approaches the Central area in VIC...
Also the wind is gusting 60-70kph here in Box Hill at the moment, and cloud is thickening...
Big P
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So far this current storm system - from my vantage point in Box Hill - is trying to form a gust front with mammatus cloud formations forming within the front itself.
Also to report - BoM confirmed a 141kph wind gust near Laramoo SA at 6.15 AEST this afternoon...
Big P
(watching the storm without a camera (bugger!))
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Winds have picked significantly in the last few minutes - but is too dark to get pics... the main storm front is heading into melbourne, and a local severe storm warning was issued at 8pm tonight...
For those wanting to see the fireworks in Melbourne may end up being disappointed (except storm chasers, of course!), as this system will produce tonnes of lightning!!
Big P
(battening down the hatches!) ~ ~ ~ ~ ~~ .....
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Wow, that's an intense front moving through now (21:10). Several intense cells, especially near Moorabbin.
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Certainly is - and plenty of Heavy rainfall too - at BoxHill (0916) it is currenly raining quite torrentially, and PLENTY of CGs and ICs at the moment! and constant too.. going to be away from the computer for about 15mins to keep safe.
Big P
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4 or 5 dark brown / black cells between Moorabbin and Sunbury :o
NYE wont be the only main news item tomorrow in Melb.....
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Hi guys, quite an interesting end to the year here in lil old SA. I'm still not quite sure what it was, but we where under a thunderstorms updraft that had just cracked its first bolts, just out of Murray bridge and the wind was going bananas. The winds where cyclonic, sometimes a couple hundred meters wide, sometimes only a hundred, but they where definitely rotating cyclonicly and formed a funnel in the center quite a number of times. The funnel resembled a very large, very wide dust devil, however there was quite violent wind even up to a hundred meters away from it. The cloud above was very dark and bulging towards the center. The rotating winds where picking up tumble weeds and small branches and throwing them around in a radius over a quarter of a km wide at some points and almost half a km high which is something I've never seen a dust devil do. We first noticed it moving through paddocks and houses from the high point of the freeway as you get into town, and was near to the freeway when we arrived there. We stopped seeing it when the sky became very dusty, it started raining, and the wind picked up to a more consistent rate/direction. The funnel wasn't present the whole time, and would dissipate, then re appear in a different location.
Here, they are. The first video was taken when we first arrived there and the winds weren't too strong further away from the center, but lots of debris where being lifted in the center. (notice the horse at the start in the bottom left hand corner for size reference)
Video 1 (http://www.youtube.com/watch?v=haOCjdA7ZLc#normal)
The second video was taken then the winds had passed further away and where a couple hundred meters wide. They slowly draw closer here.
Video 4 (http://www.youtube.com/watch?v=gdueUVu595Y#normal)
The next video was taken when I believe the center of the winds pass right to our side. I tried to narrate at that time, but the wind was sow loud, I don't think you could here my voice. It was also the only point where walking was difficult.
Video 3 (http://www.youtube.com/watch?v=3IIP31hVJdM#normal)
This video was taken just before we lost track of it. It was just beginning to rain, and the wind around us was more steady. Just after this, lightning struck with an 8 second delay of the thunder, so I jumped back into the car.
video 2 (http://www.youtube.com/watch?v=8aHZxYleQ94#normal)
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Hi Everyone,
I'm currently down on the southern Mornington Peninsula and watched the line go through over Bass Strait early evening. I was treated to some magnificent structure and strong outflow winds straight off the ocean as the front came through. Unfortunately, I left my Kestrel behind, so unable to measure (but strong enough to ripple my cheeks and almost blow me over!). The lightning was mainly CC and embedded within the rain so near impossible to photograph, but it was a beautiful pink colour as the sun had not set at that stage.
This developement was to the east of me over Gippsland, and taken at 200mm, so it's a little hazy:
(http://www.stormygirl.net/temp_images/storm1311209.jpg)
And these to the south west over Bass Strait as the line approached:
(http://www.stormygirl.net/temp_images/storm2311209.jpg)
(http://www.stormygirl.net/temp_images/storm3311209.jpg)
(http://www.stormygirl.net/temp_images/storm4311209.jpg)
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Well, if we didnt get enough from the cells on NYE - ten tonight is the icing on the cake. Alyhough unable to use camera to capture video footage of the amazing light show from Severe storms girating across the northern sky from my home position in Mooroolbark, I have definetly been treated to the best lightning I have seen in 5 years! Watching it all from my north facing bedroom window, to qoute another famous chaser, "IT IS GOING NUTS here!!!" - lightning was staccato-ing every half second! there would have been in the 2hrs of the main storm belt here somewhere in the order of 5-6 thousand bolts - most IC and long crawlers, but a few CG as well. One of those CG has ignited asmall wildfire in the Mt Evelyn area (for locals, tramway rd). There hasnt been the rainfall here as it has to the northwest. Emu Creek (near Gisborne) copped a massive 73mm in 45 mins! just a few mm here, to go with the 26mm in 1hr yesterday.
All in all, one spectacular night!
(Welcome back Storms! and Jane G!)
Big P
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Some photos of the VIC storms yesterday (1st Jan) can be found in this thread (http://forum.weatherzone.com.au/ubbthreads.php?ubb=showflat&Number=809407&page=5).
This one by Rikki Pool
(http://i14.photobucket.com/albums/a318/rikjpool/NYD001_1.jpg)
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Sydney and Newcastle area getting hammered by those lines of thunderstorms that developed from the southerly change (hence southerly buster from BoM). Today is getting rather interesting by GFS plotting 30mm at maximum across NR and into tomorrow around 50mm where the southerly change will hit us.
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Very impresive looking cell moving up the coast from Wollongong at 16:20. Probably miss Sydney coast, but I can see the flanking cells builing.
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Hi all,
Wow what an impressive looking storm cell Rikki Pool captured!
We had some very intense rainfall over several hours yesterday, the 1st of January, 2010 and some further heavy falls this morning.
The reading for the period starting at 9am on the 1st Jan to 9am today (the 2nd of Jan 2010) is 63mm.
The temps are up a bit today as the sun has finally shown itself once again. The humidity is crazy! Hopefully some serious storms will brew from the current conditions?
I'll be ready, although it's slightly muddy out here to say the least lol.
Cheers guys,
Shauno.
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Here's one more of the whirl at Murray Bridge, which I've also done in an enhanced midtones to highlight the structure in the air, and also one my wife Hayley took of the cloud base above the dust whirl, just after we spotted it on the hill.
(http://i719.photobucket.com/albums/ww195/cmhandler/100_7350-1.jpg) (http://i719.photobucket.com/albums/ww195/cmhandler/100_7350.jpg) (http://i719.photobucket.com/albums/ww195/cmhandler/100_7350_1-1.jpg) (http://i719.photobucket.com/albums/ww195/cmhandler/100_7350_1.jpg) (http://i719.photobucket.com/albums/ww195/cmhandler/100_7346-1.jpg) (http://i719.photobucket.com/albums/ww195/cmhandler/100_7346.jpg)
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Today I had to head Manly direction, and noted some nice buildup of clouds as we left home. By the time we got to that direction things were building up nicely though nothing that photogenic, a much better shot of the front was sent in by someone to 9 News tonight but they didn't say exactly where it was caught. Out of the car for 5 minutes and we got absolutely drenched, back to the car to wait for it to calm down and checked the radar. Lots of rumbles overhead though didn't spot any lightning.
After that lot went through it warmed up again, until some nice development near Wollongong later in the afternoon. Things were looking nice and black to the south of home, and shortly after received an EWN storm warning. The cells that had split off from the main one that was hanging offshore travelling NNE seemed to intensify on radar to deep red then fall apart in the next frame. By the time they got here there was nothing but some nice cloud and a bit of rain, nothing too heavy. Quite a strong southerly outflow as they approached though which at least cooled the house down. So no lightning here, I suspect the cell that went up the coast about 5pm might have produced some lightning but unfortunately we were back home by then. Wollongong was probably the spot the be today.
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The line of storms that came through Southern NSW/Northern VIC Friday night was real light show. For about three hours the entire western horizon was constantly lit up with lightning, although no thunder could be heard until it was almost on top of us.
It hit here at 1:30am and lasted until 3am.
The anvils on these storms were massive and the crawlers were amazing, also the amount of CG's pumping down became a little unnerving the closer it got!
There was some local flash flooding with this, mainly just water over roads.
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Kristy,
Good to storms and importantly rain in the region. There were widespread storms as you suggest across the region particularly Victoria for two days.
Richary, the storms in Sydney and Wollongong suffered from upper level warming so they really struggled to produce a decent anvil. There were some explosive updraft development with the western most cell albeit very brief - perhaps 5 ot so minutes. The change and lack of anvil production meant organisation was not really possible.
Earlier stuff around Wollongong
(http://www.australiasevereweather.com/photography/photos/2010/0102jd14.jpg)
Cell in Wollemi
(http://www.australiasevereweather.com/photography/photos/2010/0102jd18.jpg)
Western most cell SW of Sydney near Liverpool before it collapsed.
(http://www.australiasevereweather.com/photography/photos/2010/0102jd21.jpg)
Regards,
Jimmy Deguara
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I decided to stay in sydney and play moisture over shear for once, as the stuff from down south moves up along the coast decided to try and head to the coast before it hit, hoping for a big shelfy, seems the big shelfy happened about 40ks or so further south!!!some amazing pix down there!!! this is what was left as it weakened but developed better a few km out to sea.
Those warm uppers really played havoc, if they were cooler we would have seen some very big organized storms, as well as some lightning :P
(http://photos-a.ak.fbcdn.net/hphotos-ak-snc3/hs172.snc3/19942_256584491411_728681411_4299986_6839894_n.jpg)
(http://photos-g.ak.fbcdn.net/hphotos-ak-snc3/hs172.snc3/19942_256584496411_728681411_4299987_3520844_n.jpg)
(http://photos-h.ak.fbcdn.net/hphotos-ak-snc3/hs192.snc3/19942_256584511411_728681411_4299988_4879223_n.jpg)
(http://photos-b.ak.fbcdn.net/hphotos-ak-snc3/hs192.snc3/19942_256584526411_728681411_4299989_2368614_n.jpg)
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Interesting setup today. Weak southerly change came through and it has not killed off any chances. Alot of storm cells firing up on the Tablelands to Taree line to Moree northeastwards. Dryline is approaching aswell so watch out for large hailstones!
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We awoke to a very oppressive morning in SEQ. At 10.18 am the first warning was raised by BOM for severe storms which I received on the phone courtesy of EWN.
The warning was been reissued at 11.37 by BOM
For people in the BRISBANE CITY, LOCKYER VALLEY, LOGAN CITY, MORETON BAY, IPSWICH CITY, SUNSHINE COAST, SOMERSET, REDLAND and parts of the GOLD COAST CITY, GYMPIE, SOUTHERN DOWNS, SCENIC RIM, SOUTH BURNETT and TOOWOOMBA Council Areas.
Issued at 11:37 am Sunday, 3 January 2010.
Severe thunderstorms are likely to develop and produce damaging winds, very heavy rainfall, flash flooding and large hailstones in the warning area over the next several hours.
Locations which may be affected include Brisbane CBD, Ipswich, Maroochydore, Warwick, Boonah, Beenleigh, Logan City, Laidley, Gatton, Toowoomba, Cleveland, Strathpine, Esk, Redcliffe, Caboolture, Kilcoy, Caloundra and Noosa Heads.
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Yesterday I was at bald hill and I saw that cell come in. I was just wondering, what would constitute a supercell? What I saw yesterday seemed to have all the characteristics of a supercell (pictures I have seen). Could you let me know?
http://www.facebook.com/album.php?aid=148953&id=684966439&l=3317947795 (http://www.facebook.com/album.php?aid=148953&id=684966439&l=3317947795)
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That cell southwest of Grafton rather looking interesting at the moment! Waiting to check a supercell signature to see if this would be a truth according to the radar appearing large-ish area of red core! Getting interesting for us this afternoon.
Brisbane and Gold Coast has been getting storms for past 5 hours and bringing good rains.
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__Chis__ did the whirl attach to the cloud base at any point? It was probably a landspout tornado :)..that shelf is insane down near Sydney!!
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Yesterday I was at bald hill and I saw that cell come in. I was just wondering, what would constitute a supercell? What I saw yesterday seemed to have all the characteristics of a supercell (pictures I have seen). Could you let me know?
http://www.facebook.com/album.php?aid=148953&id=684966439&l=3317947795 (http://www.facebook.com/album.php?aid=148953&id=684966439&l=3317947795)
High humidity = great storm structure at times. Every little outflow condenses into cloud giving the awesome structure seen in your photos.
There was some brief rotation of cloud at the lead edge of the cloud, but it was wind shear, not a persistent updraft.
Attached is a video of the same storm at Port Kembla - the best stuff is after 30 seconds or so.
Storm with interesting structure - Illawarra, 2 Jan 2010 (http://www.youtube.com/watch?v=jOFwOxfEx_M#normal)
Even that vaulted structure is not supercell on my opinion.
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__Chis__ did the whirl attach to the cloud base at any point? It was probably a landspout tornado :)
There was a small funnel we could see distending from the cloud directly over the swirl when we where about 2km away, but I think the air was far to dry for any condensation funnel to develop beyond this. I guess it's hard to tell whether it was connected to the funnel or just coincidence.
(http://i363.photobucket.com/albums/oo73/AstromanSID/Weather/100_7346_funnel.jpg) The best perspective we got was when it moved to our east and we could see dust and debris extending to the cloud above, as we took this video, video 2 (http://www.youtube.com/watch?v=8aHZxYleQ94#normal)
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Photos of developing storms NW Sydney 2/1/2010
I took a sequence of photos of a shelf cloud passing overhead late afternoon across NW Sydney as well as developing cumulo congestus and cumulonimbus clouds. The following two are my favourites for the day. The photos are taken around Bella Vista in North West Sydney 2/1/2010.
The photos are taken after 5 pm and not 4 pm as I have been unable to reset the clock in my camera.
Earlier a heavy shower passed over the area but no thunder was audible. It was a warm humid day punctuated by afternoon showers where I was in North West Sydney.
Harley Pearman
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This is a shelf cloud taken from near Wollongong yesterday - quite spectacular - courtesy Al.
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Great capture Canoncloud! Insane shelf structure! Seen this develop as I was heading towards Wollongong coming back
from Hols up North, by the time I got home and grabbed the camera gear and headed your way....yep got caught in Holiday traffic..Dang!
Haven't seen anything like this come through Wollongong in a long time. Thanks Michael and Habs, great pics and video capture!
Its great to see what happened with that storm as it progressed through to Sydney.
Jimmy - Seems like that cell is what I had seen coming through on the M7, just before the Picton Rd turn off..Awesome!
Thanks guys for Sharing, Awesome pics by all.
Regards, Darinka
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A clip here of a possible tornado at Mt Ousley near Wollongong on 2nd Jan:
Twister on Mt Ousley (http://www.youtube.com/watch?v=LG23LHDexHc#normal)
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Hi guys,
MB: That's some seriously nice footage! That wrapping and structure of what appears to be the wall cloud is amazing!
Would have been great to see some nice clear stills of this twister!
Regards,
Shauno
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Hi from Melbourne, been very busy and forgot to post these pics but now that i've remebered and i've got some quiet time! so here are pics of my chase on the 1st Jan north of Melbourne.
These are shots taken on the afternoon and evening of Jan 1st beginning with mammatus south of Whittlesea, then lightning shots taken amidst the bushfire ravaged areas around Kinglake, particularly the Heidelberg Kinglake road. It was a surreal experience chasing and photographing lightning active storms through near deserted bushfire areas enshrouded at times by thick CG illuminated fog in warm new years conditions! Enjoy the pics.
(http://img34.imageshack.us/img34/9048/img9088y.jpg) (http://img34.imageshack.us/i/img9088y.jpg/)
(http://img34.imageshack.us/img34/8274/img9092c.jpg) (http://img34.imageshack.us/i/img9092c.jpg/)
(http://img64.imageshack.us/img64/2945/img9097.jpg) (http://img64.imageshack.us/i/img9097.jpg/)
(http://img251.imageshack.us/img251/5248/img9104.jpg) (http://img251.imageshack.us/i/img9104.jpg/)
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(http://img527.imageshack.us/img527/6254/img9187.jpg) (http://img527.imageshack.us/i/img9187.jpg/)
(http://img251.imageshack.us/img251/4655/img9196j.jpg) (http://img251.imageshack.us/i/img9196j.jpg/)
(http://img527.imageshack.us/img527/1985/img9202q.jpg) (http://img527.imageshack.us/i/img9202q.jpg/)
(http://img63.imageshack.us/img63/4308/img9362.jpg) (http://img63.imageshack.us/i/img9362.jpg/)
(http://img94.imageshack.us/img94/734/img93681.jpg) (http://img94.imageshack.us/i/img93681.jpg/)
Brad
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Oh and this shot was shot on NYE north of Nagambie!
(http://img709.imageshack.us/img709/5585/img9020n.jpg) (http://img709.imageshack.us/i/img9020n.jpg/)
Happy New Year!
;D
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Very nice lightning there Brad! That was an active couple of nights! Fantastic bolts.
Regards,,
Jimmy Deguara
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A clip here of a possible tornado at Mt Ousley near Wollongong on 2nd Jan:
Twister on Mt Ousley (http://www.youtube.com/watch?v=LG23LHDexHc#normal)
As I was going up the pass today I noted that there is a slight damage path - one large white cedar is down, but it looked old and was covered in vines, however in a line to the N/NW there are several other smaller trees showing tops looped off - nothing major, but enough to pick if you look hard enough.