Convective Outlook: Sat 19 Aug 2017

LOW SLGT MDT HIGH SVR

What do these risk levels mean?

Convective Outlook

VALID 06:00 UTC Sat 19 Aug 2017 - 05:59 UTC Sun 20 Aug 2017

ISSUED 20:10 UTC Fri 18 Aug 2017

ISSUED BY: Dan

Large upper trough will slowly migrate away from the British Isles across the North Sea, allowing profiles to stabilise from the southwest. However, residual instability close to the upper trough will still exist in northern and eastern Britain, with some sporadic / isolated lightning possible from scattered showers. If any lightning does occur, it is most likely over NE Scotland and the Northern Isles - here, some small hail will be possible.