|Convective Outlook: Sun 31 Dec 2017|
|What do these risk levels mean?|
VALID 06:00 UTC Sun 31 Dec 2017 - 05:59 UTC Mon 01 Jan 2018
ISSUED 22:05 UTC Sat 30 Dec 2017br> br>
ISSUED BY: Dan
Sharp upper trough will migrate eastwards across the British Isles on Sunday, with cold mid-levels atop SSTs generating deep instability in the post-frontal environment. The cold front first thing in the morning over England and Wales may exhibit some elements of line convection given strong flow parallel to the front in a strongly sheared environment. While this may be capable of a brief spell of gusty winds and heavy rain, in general convection will tend to be too shallow for much in the way of lightning.