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#1452232 - 11/02/2018 20:33 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
Mike Hauber Offline
Weatherzone Addict

Registered: 13/07/2007
Posts: 3457
Loc: Buderim
Solid but not damaging gusts here in NW Buderim but I'm quite sheltered. Funny roaring sound same as what I heard during ex-Debbie when there was some serious tree damage on the ridge above my place.

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#1452234 - 11/02/2018 20:41 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
sharjay Offline
Weatherzone Addict

Registered: 31/05/2011
Posts: 1000
Loc: Mooloolaba Sunshine Coast QLD
strong winds at mountain creek on sunshine coast too..and we are usually sheltered here in our little pocket in glenfields...still going strong with lights flickering all the time..hate to be in that wind in brisbane storm..was insane on the doppler

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#1452235 - 11/02/2018 20:44 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
Aussea Offline
Weather Freak

Registered: 23/01/2012
Posts: 56
Loc: Taree, Nsw
That continuous light show off the Mooloolaba coast is just awesome.

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#1452236 - 11/02/2018 20:44 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
weatheriam Offline
Weather Freak

Registered: 06/12/2016
Posts: 61
Loc: Redlands
At Mount Cotton that was easily the strongest winds we've had in the last 6 years!!! Amazing storm grin

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#1452237 - 11/02/2018 20:47 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Aussea]
Nature's Fury Offline
Weatherzone Addict

Registered: 29/11/2009
Posts: 2276
Loc: Brisbane Western Suburbs
I know there was a forecast of possible storms, but I don't think anyone, myself included, was expecting such an intense and widespread storm.

* Golf to tennis-ball sized hail in Boonah/Beaudesert
* 89-119 kph wind gusts in Amberley, Beaudesert, Inner Beacon, Spitfire Channel, Redlands, Redcliffe
* 100,000 homes/businesses without power across SEQ

I was driving from northern suburbs to the western suburbs of Brisbane and it was a very unusual storm. There was a nasty-looking gust front with greenage and lots of low-level swirling cloud as it passed over. But the storm itself was very strange. There seemed to be gaps in the storm - you might get lots of wind and heavy rain and then get a break with lightened cloud but behind it was massive lightning and more wind/rain.

Looking at the radar the storm complex did not look or behave like a normal storm. It came a long way from across the border but as it approached Brisbane I thought it was weakening/ tearing itself apart on approach because there were constantly shifting patterns of yellow/red separated by weaker blue/green. I think it might actually have been extremely powerful winds blowing around the storm, but how did it keep together then?

Looking at the GFS modelling and soundings I'm also interested how we had the storms in the first place. There was good CAPE (1500+), strengthening seabreeze in the afternoon with 10-15 kts in surface up to 950, good steering from the S/SW at the mid-levels and pretty steep lapse rates particularly in the mid-uppers. Despite that, I would have thought that the poor moisture and sluggish steering would have ruined storm chances?
Very interested to hear Ken's and other's thoughts on this.

Might I suggest that a new topic be started for the heatwave and storms starting today and ending later in the week and all relevant posts be moved into it, especially as it looks like we could get a repeat tomorrow. This was also a higher-end severe storm event and doesn't belong hidden away in here.

Conditions look similar in many respects. This time we have much better turning winds and mid-level steering (especially in southern parts of SEQ). There's a few variables in the GFS modelling that favour the GC area more than Brisbane this time though.


Edited by Nature's Fury (11/02/2018 20:48)

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#1452238 - 11/02/2018 20:48 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
whynot Online   content
Weather Freak

Registered: 01/10/2001
Posts: 542
Loc: Brisbane
Just having a second look at the CAPE and LI for this afternoon. They certainly were juicy enough, but there was a significant CAP that one would have expected to keep a lid on things near the coast. That said, it is always on the cards on a very hot day for the CAP to break, and it looks like that what happened today.

Nice photogenic storm clouds as they approached Bracken Ridge. But what got me was the smell of "dust" riding the outflow winds. It had a funny dry-tingling-dusty smell (not ozone, but "dust" to my nose) a good 15 minutes before the main gust front arrived.

Just looking at the Energex web site ... a storm event with 130,000+ customers off is a big event for them. While ex-TC Debbie, ex-TC Oswald, Brisbane Floods etc. had larger total customer outage count, from memory, this storm (11 Feb 18) is the largest single storm event in their history. This is going to take a while to put the network completely back together, and there are going to be upset customers tomorrow (Monday), who are without power in the middle of a heatwave.

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#1452239 - 11/02/2018 20:51 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
Steve O Offline
Weatherzone Addict

Registered: 02/03/2011
Posts: 3323
Loc: Beenleigh, QLD
Was pretty good here we lost power about 4 times but we were lucky not to lose it most areas around have lost power. Theres some minor damage colour bond fences downed but not very sturdy anyway the usual tree brances arouns approx 90-100k wind gusts at an estimation judging by other obs. Nice

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#1452240 - 11/02/2018 21:01 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Steve O]
Nature's Fury Offline
Weatherzone Addict

Registered: 29/11/2009
Posts: 2276
Loc: Brisbane Western Suburbs
So we've had a storm with widespread severe wind gusts across the Brisbane area that came from south-west beyond the NSW border on a marginal day requiring the CAP to be broken. Talk about overcoming obstacles. I've seen 1000 times better set-ups than today go begging.

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#1452241 - 11/02/2018 21:08 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
TWEEDSTORM Offline
Weather Freak

Registered: 08/01/2012
Posts: 865
Loc: Tweed Heads NSW
Nature never ceases to amaze eh! Was pretty tame down here on the border but once it hit that range things really ramped up for you guys further north

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#1452242 - 11/02/2018 21:12 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
wetdreams Offline
Weather Freak

Registered: 25/10/2010
Posts: 102
Loc: Mooloolah Valley QLD
We haven’t had any serious winds, but lost power about half an hour ago. Reading some of those obbs from south of us I would expect some reports of damage around the place and I’m guessing we might be out for a while yet.

As expected all of the action split and wrapped around us. We managed a few spots of rain and some distant lightning, it mostly just brought a refreshing change and cool breeze for us.

Even though we didn’t really get anything much out of them, the clouds where amazing to watch building and bubbling over us for a good 45 minutes or so.
Managed to snap a few decent shots on the phone, they captured the contrasts perfectly (not edited).



_________________________
Going to sleep with heavy rain on a tin roof always makes for ‘wetdreams’….

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#1452243 - 11/02/2018 21:19 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
Namarrkun Online   content
Weather Freak

Registered: 17/11/2012
Posts: 479
Loc: Salisbury
Got a mate who was at a concert at The Sandstone Point Hotel at Bribie, his Facebook post says the last act was cancelled due to damage to the stage, and some people were injured and taken away in ambulances


Edited by Namarrkun (11/02/2018 21:20)

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#1452244 - 11/02/2018 21:19 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
RobsHemiA Offline
Cloud Gazer

Registered: 11/01/2011
Posts: 35
Loc: Sandgate , Brisbane .
We got hit pretty well on the northside of Brisbane . Power is out through Deagon , Sandgate and Brighton . Trees over the road here in Deagon and around Sandgate that i saw . Be interesting to see what it looks like in the morning .

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#1452245 - 11/02/2018 21:30 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
Mad Elf #1.5 Offline
Weatherzone Addict

Registered: 05/03/2012
Posts: 3600
Loc: Mt Hallen QLD
I think today caught some people with their pants down.

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#1452248 - 11/02/2018 21:46 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Mad Elf #1.5]
Lewis Offline
Weather Freak

Registered: 14/08/2011
Posts: 334
Loc: Brisbane Western Suburbs
Originally Posted By: Mad Elf #1.5
I think today caught some people with their pants down.


Today was a very good example of how people behave when storms aren't forecast. At least there was plenty of cloud ahead of the storm front which gave a decent amount of warning.

I'd be curious to compare power outages from Debbie & the 27 Nov 2014 storm to this one. There are a number of trees & large branches down around here, and while we still have power, at first glance, this gust front appears to be just as bad as anything that got thrown up by Debbie - at least around here.
_________________________
Donut hole V2.0.

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#1452249 - 11/02/2018 21:58 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
Mad Elf #1.5 Offline
Weatherzone Addict

Registered: 05/03/2012
Posts: 3600
Loc: Mt Hallen QLD
Yep, there were storm clouds towards the SW before 3ish this arvo, hit the big 40C & by the time I got around to check radar storms were building west of Toowoomba for our round of storms. Cars under cover but a bit if bad luck with those, just missed us but the second line was quite clear by that time but I decided to have a nana time & missed the main event. LOL. Still got power & aircon :-)

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#1452252 - 11/02/2018 22:07 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
Foehn Correspondent Offline
Weather Freak

Registered: 01/11/2001
Posts: 633
Loc: Bardon 4065
Power out here since about 6:30 a couple of very close shotgun flangs, but I think the damage to the power network here was from the wind, power went out just after big gust. Have the radio on ABC news reporting that a man suffered an electric shock while have a shower at Ferny Grove. Believed lightning struck nearby at the time.


Edited by Foehn Correspondent (11/02/2018 22:07)
_________________________
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#1452253 - 11/02/2018 22:12 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Lewis]
whynot Online   content
Weather Freak

Registered: 01/10/2001
Posts: 542
Loc: Brisbane
Originally Posted By: Lewis

I'd be curious to compare power outages from Debbie & the 27 Nov 2014 storm to this one. There are a number of trees & large branches down around here, and while we still have power, at first glance, this gust front appears to be just as bad as anything that got thrown up by Debbie - at least around here.


Energex Annual 14/15 report has 27 November 2014 Storm as having 114,500 customers off. Energex Network Performance Report for 16/17 has Debbie causing 200,000 customers without supply (but from memory the peak was around 127,000 customers off as it was a slower moving system).

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#1452255 - 11/02/2018 22:49 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
tsunami Offline
Weatherzone Addict

Registered: 06/12/2010
Posts: 1244
Loc: Wynnum SE Brisbane
Got smashed here
41mm rain
Trees down
Huge wind
Bit like cyclone ita in townsville
_________________________
Wynnum SE Brisbane

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#1452260 - 11/02/2018 23:29 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
gleno71 Offline
Weatherzone Addict

Registered: 09/11/2007
Posts: 1684
Loc: Australia
Access C nailed the forecast with a storm system developing south of the Border moving in a NE direction towards Brisbane. Though the model had the activity happening more in the early evening. Tomorrow looks like a carbon copy, Activity to form west of Byron, and Brisbane in the firing line .

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#1452263 - 11/02/2018 23:54 Re: SEQLD/NENSW Heat & Scattered Thunderstorms - 10th to 17th Feb 2018 [Re: Seabreeze]
gberg Offline
Weather Freak

Registered: 14/08/2015
Posts: 88
Loc: noosaville
Heres a couple of shots of todays storms in Noosa.
We had 3 cells skim the edge of town however all the main action went up through the hinterland as per usual.
Had an amazing light show for a couple of hours though!

IMG_6010 by George Berg, on Flickr

IMG_6164 by George Berg, on Flickr

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