Jon,

Indeed, we can get a lot of precipitation under those conditions. Any
northerly funnelling down from the Irish sea & clipping Cornwall is bad
news.

The 25th & 26th November saw 63.6mm of rain/hail here under similar
conditions. The sea was warmer then, which helped make it particularly wet.


Graham
Penzance


"Jon O'Rourke" wrote in message
...
Spiky super-convergence line heading your way..
http://www.weather.org.uk/charts/UKCpf120.gif

Jon.