Southampton - Around 2100BST: clear sky still visible to north; around
2030BST, some patches still visible more or less overhead. Just
started raining quite heavily, none of your prolonged Ci/Cs/As
sequence with this one...

Can't remember a time when we've had so many frontal waves moving in
from the SE into Atlantic air repeatedly. This "back side of the
plume" setup must be highly unusual.

Nick