VALID 06:00 UTC Sun 23 Aug 2020 - 05:59 UTC Mon 24 Aug 2020

ISSUED 08:01 UTC Sun 23 Aug 2020

ISSUED BY: Dan

A broad westerly flow covers Britain and Ireland on Sunday, with a better overlap of cool 500mb temperatures with relatively warm 850mb temperatures to generate corridor of steeper mid-level lapse rates from Northern Ireland across the northern England / north Midlands. Consequently this zone will be the focus for deeper convection in response to diurnal heating through the day, although the overall depth of convection is rather restricted and so lightning is likely to be quite isolated, and similar to Saturday most likely from Yorkshire south across the East Midlands into Norfolk (15-20% chance) where 20-30kts bulk shear will aid cell longevity. The most organised cells could produce gusty winds up to 30-35mph locally.