Convective Outlook: Wed 27 Apr 2016
LOW
SLGT
MDT
HIGH
SVR
What do these risk levels mean?
Convective Outlook

VALID 06:00 UTC Wed 27 Apr 2016 - 05:59 UTC Thu 28 Apr 2016

ISSUED 17:30 UTC Tue 26 Apr 2016

ISSUED BY: Dan

Broad upper low resides across the North Sea on Wednesday, with cold mid-levels overspreading relatively warm SSTs and combining with diurnal heating inland to create a deeply unstable airmass. Another day of scattered showers and a few weakly-electrified thunderstorms is expected, lightning activity particularly focussed along zones of low-level convergence encompassed by the SLGT.


Very steep lapse rates suggests that multiple events of graupel/small hail are likely, and with lighter winds than on Tuesday, showers/storms will tend to be much slower moving and thus pose a threat for some local minor surface water issues.