chionomaniac

December 2010 was unique in the fact that tropospheric wave 2 breaks into the strat occurred in the perfect position to reinforce a Greenland high. The split of the vortex was high into the stratosphere. At the time I called this an ‘internal wave break’, ie very much tropospheric led and not one that leads to a traditional SSW. These are far more beneficial to the UK than the more easily recognised over the top type wave 2 break from negative EAMT scenarios that force pressure up and from the surf zone of the strat vortex before leading to a collapse of the SPV from top to bottom.

Great blog post Sam. Really impressive and important field studies.

Topic headline reminds me of - eats shoots and leaves!

Brilliant. Can’t wait

I don’t care if this has already been posted. Classic roasting supercell. Wonderful!

Great timelapse. Sadly you weren’t in the best position due to the precip to see any rotation, though can certainly see the shear and change in wind direction when comparing the approach and departure of the storm

I’ve heard of splitting right movers in the USA but this one is something else. In the us the right movers will generally head SE, but in this easterly flow we have a north east mover

Yep but great to see the northwest get some severe weather

Any positive cgs anyone?

That’s what us storm chasers pay good money for. A good few pics of structure too in this feed

Looks like original core of supercell has faded leaving dominant new cell to the east. Still a beast

Second photo looks excellent. Will this be on your regular timelapse or wrong direction?

Not if you have a car and are prepared to drive

Been watching the Cheshire storm on radar for an hour. Would love to see more pics of it because on radar it certainly looks supercellish. Long lived and keeps restructuring too. Would love a clear timelapse from the se of the storm!

Further to the funnel cloud reports I managed to timelapse the developing storm about 12 miles further north and you can see the rotation develop before the storm matured. By the time I chased it was too late. Doh. Also pics of the storm to the south of East Sussex. And a most beautiful sunset from Ditchling beacon with the added bonus of a red rainbow