On Oct 20, 9:08*am, Graham Easterling
wrote:
Windy last night, with gusts widely to 40mph in the far SW. Also mild,
with a minimum of11.8C.

14.2mm of rain overnight, but it cleared eastwards around 08:00 with
the cloud already starting to break. The overnight force 5-6 SE has
now become a Force 2-3 S just behind the front.

I see there's a heavy rain weather warning for Cornwall & the Isles of
Scilly from 10:00-15:00. It's been & gone here, and will have cleared
most of Cornwall by 10:00. *Heavy rain here was 04:00-07:00.

The warning was issued at 08:00 - shouldn't it be issue before rather
than after the event?

Graham
Penzance

There's one problem of the warnings site. It's a long way from the tip
of Cornwall to the Tamar, then again to the Devon-Somerset/Dorset
border and the broad brush approach of those large area warnings just
can't cope. Eastern Cornwall has that heavy rain now (10.15) and so
the warnings site has a spatially technically correct warning for the
whole of Cornwall, but, as you say, it is past and gone in the far
west. Whether the final rainfall amounts will justify a warning can be
judged after this trough has passed.

The weather radar does suggest bursts of very heavy rain, but that is
only along a very narrow frontal band. It could get interesting here
for a short while, as the wind is presently force 5/6 and there could
be gale-force gusts in that narrow belt of steep uplift. Trees are
still in leaf. We'll soon see!