On 15/11/2012 09:29, Martin Rowley wrote:

... using this site:-

http://www.sat24.com/

choose VIS imagery for Europe and you can see (now the sun is
illuminating the cloud tops) a near-perfect arc of line convection with
(I think) just one break. Seems to be coming forward associated with
cyclonically-sheared development associated with the
slow-moving/warming-out vortex seen here ...

http://www.wetterzentrale.de/pics/Rtavn001.png


.... just correcting myself somewhat; undoubtedly a convective element,
but cross-referring to IR image, obviously NOT a classic line-convection
event - the cloud tops aren't nearly cold enough and the 'line' doesn't
show up to match the VIS picture. So more like a boundary-layer feature
- perhaps propagating outward from the deeper convection further west ...??

Martin.


--
West Moors / East Dorset
Lat: 50deg 49.25'N, Long: 01deg 53.05'W
Height (amsl): 17 m (56 feet)
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