Supercell wiith large hail Southerm Brisbane Jan 17 2007

On the 17th of January 2007, conditions were incredibly setup for fast moving severe / dangerous thunderstoms.

Conditions on this day had incredible severe potential by Australian standards and the morning SKEW-T plots looked more like something you would expect to see in the Plains states in the USA!

Very cold upper temps meant large hail was the primary concern if not a certainty, while incredible low level and veering directional shear meant that tornadoes could also not be ruled out.

The main difficulty was actually trying to keep up with these storms as they were moving in excess of 70km/h at some stages.

For any convective outlook on this day, most certainly the areas of South East QLD and North East NSW would have categorically been labelled as HIGH risk areas.

This particular thunderstorm was moving along at over 70km/h and was consistently producing large hail.

These storms formed very close to what could have been described as a dry-line type setup, with incredibly moist Coral Sea air feeding into a deep surdace trough aided by very cold air aloft!

I am also interested if anyone can explain that strange base feature about half way through until the end..

Category:

Science & Technology

Tags:

• dangerous
• thunderstorms
• large
• hail

[Sweety4Nick]

How was that a tornado?

[Hinezy77]

There was no tornado. I was just saying that the possibility of tornadoes couldn't have been ruled out given the conditions that day. If you look closely though to the left part of the storm you can see rotation, which is the first signs of a tornado developing.

[Kayakofan3]

That strange cloud base maybe a possible Wall cloud. But it is hard to tell. Nice hail shafts to the right =).

[54spiritedwill54]

wow that's a great storm :) very nice footage

[Govenator001]

beautiful storm

[bowecho2]

the perfect storm ... Thanks for sharing

[budgiebreder]

uh what? i don't understand that but i want to!

[budgiebreder]

there was a tornado last year in australia near where i live in a place called "dunoon" near lismore in nsw. it caused amazing damage but there was nothing - tornado wise - on this particular day

[Staccato26]

Nice crisp knuckle-topped cauliflower tower!!!!

Verrry visible hail shaft to the right and awesome roating RFB to the left with adjacent inflow!

Awesome vid :)