Nice bit of instability indicated in the cloud formations above Shropshire
at the moment - there is a broken layer of high SC or low AC overhead, and
through gaps in the layer I can see "turrets" of cloud gleaming white in the
sunshine. They are not especially large in a vertical sense, but they do
indicate some level of instability over a relatively shallow layer. The
advection of higher theta-w air must be slightly quicker at the base of the
layer compared to the top! I've tried to get a picture, but it doesn't
really do it justice...
--
Freddie
Bayston Hill
Shropshire
102m AMSL
http://www.hosiene.co.uk/weather/
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