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Offline Colmait  
#41 Posted : Friday, 13 December 2019 3:50:40 PM(UTC)
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Originally Posted by: DelBoy Go to Quoted Post
This is the "V. Dangerous" Noosa cell.
IDR083.gif


Hey Delboy, although the cell is a VDS, it technically is not a V notch. What has happened is there was a smaller cell just to the North of the main cell, it got caught in the steering winds from the Fraser Coast and it thus moved in a Southeasterly direction causing it to collide on the Eastern side of the main cell creating what looked like a V on the radar.

If you have a quick look you can see the cells collide. I used to be able to get the archives and post them on the forums but now they want pretty big money.

It is a pretty intense cell. Here is the doppler image of it. Some strong gust in there.

D94DBDC9-669F-4E57-B8EC-75ABC7E0050C.png
Colin Maitland.
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Falling_Droplet on 13/12/2019(UTC)
Offline Colmait  
#42 Posted : Friday, 13 December 2019 3:56:04 PM(UTC)
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Brisbane CBD is now in the firing line. Some updates on hail and rain in the second half of the warning

Latest warning from BoM

TOP PRIORITY FOR IMMEDIATE BROADCAST

Severe Thunderstorm Warning - Southeast Queensland
for DAMAGING WINDS, GIANT HAILSTONES and HEAVY RAINFALL
For people in Logan and parts of Ipswich, Gympie, Gold Coast, Redland City and Brisbane City Council Areas.

Issued at 3:33 pm Friday, 13 December 2019.

Rainbow Beach area: Severe thunderstorms are likely to produce damaging winds, heavy rainfall that may lead to flash flooding and giant hailstones. Logan and Moreton Island area: Severe thunderstorms are likely to produce damaging winds and heavy rainfall that may lead to flash flooding.

Weather Situation:

The Bureau of Meteorology warns that, at 3:30 pm, very dangerous thunderstorms were detected on the weather radar near Rainbow Beach and Inskip. These thunderstorms are moving towards the north and are forecast to affect Inskip Point by 3:50 pm and are likely to produce damaging winds and heavy rainfall that may lead to flash flooding and large, possibly giant hailstones.

Other severe thunderstorms were detected on the weather radar near Point Lookout, Amity Point, Dunwich and Tamborine. They are forecast to affect Beenleigh, Logan City and southern Moreton Island by 3:50 pm and northern Moreton Island, Comboyuro Point and Cape Moreton by 4:20 pm and likely to produce damaging winds and heavy rainfall that may lead to flash flooding.

Approximately 8-10cm hail was observed at Wilsons pocket

Approximately 4-6cm was observed at Kandanga

Earlier, 120mm was recorded at Biggera Creek Dam in 1hr


C3168F7C-DCE5-4C38-BF1F-D51D28E5A6C4.png

Edited by user Friday, 13 December 2019 3:57:25 PM(UTC)  | Reason: Added track path

Colin Maitland.
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Falling_Droplet on 13/12/2019(UTC)
Offline DelBoy  
#43 Posted : Friday, 13 December 2019 4:04:00 PM(UTC)
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The southern cell has taken a slightly northerly turn and Brisbane is next!



IDR664.gif
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Offline Greg  
#44 Posted : Friday, 13 December 2019 4:18:43 PM(UTC)
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Heavy rain here from that shower / storm that has formed just ahead of the main line of storms. Just rain no hail here. Little bit of wind.

Was up at my usual spot on the ridge above the Toowong cemetery and watched the storms approach. Hopefully post a couple of photos later although not that photogenic really. Plenty of CGs as it approached.Rain easing now.

Greg
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Offline Greg  
#45 Posted : Friday, 13 December 2019 4:56:55 PM(UTC)
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Couple taken from Birdwood Terrace near the Toowong Cemetery this afternoon.



Looking towards the south east



Towards the south

Edit Looks like that storm has picked up again 107 and 98 km per hour gust at Redcliffe.

Edited by user Friday, 13 December 2019 5:11:35 PM(UTC)  | Reason: Not specified

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Offline Colmait  
#46 Posted : Friday, 13 December 2019 5:37:28 PM(UTC)
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A bit of a hammering here. 41mm of rain and 49 km/h winds. No hail . Deagon just a suburb over, received 72mm.

Maybe a few showers and storms about here and there tonight and another chance of a storm tomorrow, Saturday 14th.
Colin Maitland.
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Offline Colmait  
#47 Posted : Friday, 13 December 2019 5:59:52 PM(UTC)
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Great photos Greg. Yeah Redcliffe must have received some damage.
Colin Maitland.
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Offline Falling_Droplet  
#48 Posted : Friday, 13 December 2019 6:39:01 PM(UTC)
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The storm was too coastal again with just the edge of that storm at my location with 3 mm (automatic gauge). But I was in Brisbane when the severe storm came thorough and it had quite intense rain and reasonably gusty winds.
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Offline CantSpellNarangba  
#49 Posted : Friday, 13 December 2019 6:42:49 PM(UTC)
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Great images Greg. Wonderful vantage point.
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Offline CantSpellNarangba  
#50 Posted : Friday, 13 December 2019 6:48:25 PM(UTC)
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Some images from
https://mobile.abc.net.a...-sunshine-coast/11799068


11799158-3x2-460x307.jpg11798490-3x2-940x627.jpg11798270-3x2-940x627.jpg11798860-3x2-940x627.jpg

Edited by user Friday, 13 December 2019 6:48:59 PM(UTC)  | Reason: Not specified

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Offline Colmait  
#51 Posted : Friday, 13 December 2019 8:03:47 PM(UTC)
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There has been a lot of damage from this afternoons storms. Just heard that the Toombul Shopping centres roof collapsed during the storm, probably due to the weight of the hail. Lots of flash flooding writing off a lot of cars along with very large hail in some areas causing damage to cars etc. I am waiting for the news to flow through.


There seemed to be a longer than usual delay on the Mt Stappy radar while it is undergoing maintenance. I phoned my wife and was telling her she was going to get hit within the next 20 minutes, she looked at the radar and agreed but then looked out the window and it was already hammering down in town.

Tomorrow looks like another possible day for storms with large hail, heavy rain and strong winds again if everything falls into place.

Here is the 1600 forecast sounding for tomorrow.

9545117C-26A7-4EF0-B800-A00699A731D9.png
Colin Maitland.
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Offline Falling_Droplet  
#52 Posted : Friday, 13 December 2019 9:29:29 PM(UTC)
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A near maximum today with the temperature variable in the morning and afternoon. Most of the rain with the thunderstorm fell over a 6 minute period from 4:22pm with the highest rain rate of 145.8 mm/hr at 4:25pm. The temperature fell quickly in the late afternoon with the thunderstorm before becoming stable at 21 C following the thunderstorm. Dew point rose slowly during the morning before falling from the late afternoon whilst remaining near average. Tonight the dew point have been near average. Relative humidity have been near average today and this evening. The relative humidity rose sharply with the thunderstorm and became high. Light NNE to E winds in the morning, ENE to SE from the mid morning, E to NE from late morning, SSE to ESE with the thunderstorm and NE to SE following the thunderstorm. Tonight have been light E to ESE being N to NE and is now calm.

Edited by user Friday, 13 December 2019 9:36:55 PM(UTC)  | Reason: Not specified

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Colmait on 13/12/2019(UTC)
Offline Falling_Droplet  
#53 Posted : Friday, 13 December 2019 11:21:23 PM(UTC)
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Offline Colmait  
#54 Posted : Saturday, 14 December 2019 7:28:46 AM(UTC)
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As Greg mentioned in his earlier post, the storm was not real photogenic, if anything up here in Bracken Ridge it was a bit of a scrambled mess until it pulled itself together at the last minute and gave us a thumping.

From looking out over to the airport in photo one you could see the inflow coming from the bay very clearly by the way the lower lying small scud cloud is pointing , and I believe that is why by the time it hit us then moved over the water to Redcliffe it had generated a lot of power with the 107km/h gust. The storm crosses approximately 2.5+ kilometres of water at Dohles Rocks and the outlets that opens up to the bay. It is pretty shallow water and is quite warm.


E1D50E91-246A-4D01-8DA1-B680A36C5228.jpeg

Then just a random shot looking at the messy storm 4AAD2995-F49E-4399-ADC7-893D3AD615FD.jpeg

Edited by user Saturday, 14 December 2019 7:38:34 AM(UTC)  | Reason: Not specified

Colin Maitland.
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Offline CantSpellNarangba  
#55 Posted : Saturday, 14 December 2019 8:21:50 AM(UTC)
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Great explanation Colin. Thank you.
I haven't been too lucky with this event and managed 5mm. Great sound and light show though.

I am not too optimistic about today's however a nice shower would be good, before we enter another dry and hot spell.
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Offline Colmait  
#56 Posted : Saturday, 14 December 2019 3:31:21 PM(UTC)
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A few storms to the North around Tiaro and the Wide Bay area.

It is trying hard so we have to just see if anything can build a little further South as the evening approaches.

6E6A12B6-1053-4874-BF92-1173703F6B37.png
Colin Maitland.
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Offline KellyT  
#57 Posted : Saturday, 14 December 2019 4:40:15 PM(UTC)
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Warm and sunny day here in Ningi and hardly a cloud in the sky.
Getting quite muggy too.
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Offline Falling_Droplet  
#58 Posted : Saturday, 14 December 2019 11:01:26 PM(UTC)
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The temperature was a little variable from late morning to mid afternoon. Quite limited cu clouds during the day. Dew point have been near average and rose during the morning and have been generally stable since the late morning. Relative humidity have been near average today and during tonight. Light E to SE winds during the morning, E to ESE in the early afternoon, E to NE from mid afternoon and N to NE in the last 2 hours.

Last 24 hours:
temp 2019-12-14.PNGwind dir 2019-12-14.PNG
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Colmait on 15/12/2019(UTC)
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