Convective Outlook: Fri 17 Jun 2016
LOW
SLGT
MDT
HIGH
SVR
What do these risk levels mean?
Convective Outlook

VALID 06:00 UTC Fri 17 Jun 2016 - 05:59 UTC Sat 18 Jun 2016

ISSUED 19:38 UTC Thu 16 Jun 2016

ISSUED BY: Dan

Large upper trough will continue to track eastwards across Europe, bringing a round of severe thunderstorms from Poland / the Baltic states down to the northern Balkans - with large, damaging hail and tornadoes possible. In the British Isles, moist low-level airmass remains across southern Britain, in a rather slack environment. Areas of low-level wind convergence, coupled with diurnal heating, will once again be the main focus for scattered showers and a few thunderstorms in a weakly-sheared environment.


Primary hazards will again be the risk of local flash flooding from slow-moving heavy downpours, although the overall orientation of steering winds will tend to favour some areas that have largely escaped deep convection so far this week. Small hail, locally up to 1.0cm in diameter, will be possible with the strongest cores, while low cloud bases and areas of convergence may promote the chance for a few funnel clouds or a brief, weak tornado.