On Fri, 18 Oct 2013 11:17:10 +0100, Joe Egginton
wrote:
Were these showers formed by convergence of a sea breeze from the
Irish
sea, coming over the Cheshire plain, and wind from mid-Wales?

There was limited instability yesterday. Some of the showers came
from west of you (Irish Sea and Wales) and some formed in situ over
Shropshire via convection (temperatures reached 17 yesterday - about
13 was required to initiate convection). There wasn't any significant
convergence IMO looking at plots of surface winds.

I was anticipating showers, and they were mentioned in the forecast,
so they weren't unexpected to me.

--
Freddie
Castle Pulverbatch
Shropshire
221m AMSL
http://www.hosiene.co.uk/weather/
http://twitter.com/PulverbatchWx for hourly reports