SNIP
However in general subsided marine boundary layers (esp.
Pm ones) tend to be rather cloudy with a lot of trapped Sc. How that
reacts on traversing land depends on a number of factors, maturity of
the layer, height of the inversion and BL flow strength are just
three. Sc forecasting is a nightmare at any time of the year and has a
huge impact on the weather and feel of the day.

Steve.www.rockbeareweather.co.uk- Hide quoted text -


I agree with your point on sc forecasting. Quite commonly under these
conditions, there is quite a bit of sc out to sea, which dissipates
2-3 miles offshore, with small cumulus inland, leaving a cloudless
strip on the coast (as today). I have sometimes thought that the
seaward (descending) edge of the sea breeze circulation might aid the
destruction of the sc. Often the forecast is for north (Cornish) coast
misty low cloud (as today) when it's unbroken sunshine. But, as you
say, it's a forecasters nightmare. Best to use the surfcams.

Last 2 days have been reasonably sunny here, and today is absolutely
glorious, deep blue sky, along the coast with virtually no wind &
strong sunshine. Sunny on both coasts. We missed all the recent heavy
downpours, and the dunes are now looking browner than at any time last
year.

www.nci-stives.org/basiccamera.htm
www.minack.com/min02_7ref30.htm (bottom camera currently shows the sc
out to sea)

Graham
Penzance