9th, started on a sunny note, but the cumulus which quickly developed
inland spread out, to give a very cool, cloudy, but dry afternoon. Max
15.4C just before the cloud spread over.

Today has been rather different. Prolonged sunshine until 12:30, just
enough of an onshore breeze to keep the immediate coast clear of the
cloud. www.minack.com/min02_7ref30.htm Rapid cumulus development
along the spine of the Lizard, and on the Penwith peninsula, but
they've just got bigger, the stable layer which caused the the
spreading out over the coast is far less evident. As a result, here on
the coast in the sunshine, the temperature had risen to 16.8C by
12:30, feeling warmer in the strong sunshine.

There are now some impressive Cb over the land and along the north
coast.

Graham
Penzance