Convective Outlook: Tue 25 Apr 2017

LOW SLGT MDT HIGH SVR

What do these risk levels mean?

Convective Outlook

VALID 06:00 UTC Tue 25 Apr 2017 - 05:59 UTC Wed 26 Apr 2017

ISSUED 17:44 UTC Sun 23 Apr 2017

ISSUED BY: Dan

A rather amplified upper pattern will dominate on Tuesday over the Atlantic and northern Europe, with a longwave trough extending from Scandinavia and across the British Isles. All areas will be under the influence of a cold, Arctic airmass, with frequent showers near windward coasts at first, while most inland locations will be clear to start, but through the day diurnal heating will help generate convection widely inland too, sometimes focussed along distinct bands as shortwave troughs move south in the flow. As a result, a widespread (but relatively low per given location) risk of lightning will exist, along with some small hail and wintry precipitation - especially on hills. A few cold air funnels will be possible also.