On 03/07/2011 21:03, Joe Egginton wrote:
On 03/07/2011 11:17, Bernard Burton wrote:
"Dave wrote in message
...
I notice on the 10 am radar on both IR and vis a very well defined but
completely isolated clump of thick cloud over the Midlands. I
wondered at
first if there had been a fire. Not associated with any rain.
Dave

The patch of cloud to which you refer, Dave, is at about
6000ft-7000ft, and
can be traced back to yesterday's convective activity just east the Welsh
border. The convection was capped at that level, and produced a saturated
area which would probably have been maintained by an absence of dynamic
descent in that layer plus internal convective overturning as a result of
cloud top cooling.
A 3 hourly sequence of imagery can be found at:

http://www.woksat.info/etctg02m/indextg02m.html

I went out at 10am this morning, and was quite worried when I saw Ac
with fall streaks. I was thinking there was a possibility of showers
this afternoon. All that happen was Cu built up from around 11am and
spread out into Sc by the afternoon.

Joe Egginton
Wolverhampton
175m asl


Just checked what I saw at 10am it was Altocumulus floccus virga.