Serious potential for strong (tornadic) supercells on June 18th in FVG, Italy

Estofex gave LVL2 for today in N-Italy and the setup really is very good. I won't really into details because time is not on my side. Just a quick writeup. 50 kt 0-6 km shear combined with good SFC winds with nice veering and moderate CAPE values suggests serious potential. The best potential is again in the FVG region where winds are the best. The cap is not small and there is no serious 10m convergence until 18Z so we will see if it can break it anyway. PWAT values are ridiculousy high, in the 42mm range, so everything points to (potentially tornadic) HP supercells. Good luck to everyone who will chase today. I won't be chasing because of college work. :(

April 25–28 Epic tornado outbreak in the USA

A violent tornado outbreak from April 25 – 28, 2011, affected the Southern Midwestern, and Eastern United States, leaving catastrophic destruction behind. At this time there are more than 350 casualties confirmed but the number is still rising.

It was really an amazing setup, just by looking at the numbers. These were the conditions in Alabama:
CAPE : 1000-2000 J/kg
0-6km shear: 70 kts
SREH3: 1100 m2/s2 (!!!)
Significant tornado parameter : 13.0
Supercell composite parameter : >40

These numbers are mind-blowing and we probably won't see this kind of setup for quite some time.

Some interesting images from the supercell that dropped the tornado that hit Tuscaloosa and Birmingham:

Tornado track in Tuscaloosa.

Tornado tracks clearly visible from space. Look how huge the track is! Credit: NASA

Most violent supercell of this tornado outbreak in Alabama.

Crazy hook echo with debris ball.

June 6th 2009 - Great day in FVG with supercells!

The forecast was good so me and two friends decided to chase in FVG (Friuli-Venezia-Giulia). Starting point was in Sežana then we proceeded to catch the first thing that came into our range. It was already spectacular on the radar when we started. We caught it close to city Udine.

On the road, still in Novo Mesto.

First supercell on a gas station near Udine. Nice inflow banding. Too bad there were stratus clouds all around us so we didn't get to see much other then the wall cloud and circulation.

Awesome view of the wall cloud.

Spectacular rotation. Too bad we were a little late so we head to do most of our shooting from the car.

Once again the awesome structure of the wall cloud. RFD is now obvious.

On a toll booth, in traffic ... RFD was really cutting into the wall cloud as seen here. Obvious lowering, it was trying to produce a tornado here but it couldn't.

This storm then hit the hills east of Udine. I'm certain that it would produce tornado if there weren't any hills on the way! Next supercell please ...

From the car.

Close to Palmanova. This supercell already dropped 2 tornadoes, one of them F3 with 10.5 km lenght and 250 m width ... Too bad we missed this one also.

Back north.

Interesting structure.

On the same gas station as before. Awesome view!

All over the sky. Nicely illuminated.

Panorama...

Successful stormchase, too bad we missed the tornadoes but that's how it is. Maybe with better CAPE ...

Author of the video : Peter A.