wrote in message
ups.com...
I always think - doubtless far too casually - of a cold front as
meaning a change to lower dewpoints.

Jack

When I worked for Isles of Scilly Skybus, on many occasions we'd be in the
fog at Land's End airport desparately waiting for the cold front to go
through so that we could resume flights. It typically cleared on Scilly 1 -
2 hours before Land's End (about 35 miles).

Graham