|Convective Outlook: Sat 18 Jan 2020|
|What do these risk levels mean?|
VALID 06:00 UTC Sat 18 Jan 2020 - 05:59 UTC Sun 19 Jan 2020
ISSUED 17:15 UTC Fri 17 Jan 2020br> br>
ISSUED BY: Dan
Upper trough will gradually clear to the east of the British Isles on Saturday, but still enough cold air aloft to create an environment with very steep mid-level lapse rates and a few hundred J/kg CAPE. Showers will primarily affect northern and western Scotland during Saturday daytime, moving well-inland on the brisk northwesterly steering flow, but becoming increasingly isolated in nature by the afternoon as ridging builds across the British Isles. Convection and showers will persist over the North Sea through the evening and night hours, gradually clearing southeastwards - but perhaps passing close to the Norfolk coast for a time. Some sporadic lightning may be possible offshore with this activity.