(6:40 UTC) – A major squall line is crossing the Tyrrhenian sea, extending from the south of Sardinia to central Italy in the MDT risk area of SWE Day 1 Outlook for 5/10/13. Strong thunderstorms are reported to have hit Sardinia. Further severe weather development is expected in the MDT risk area in the coming hours. Main threats include large hail, severe winds, heavy rain with flash floods. Tornadoes are expected as well, possibly strong.

Follow this major severe storm system with Italy radars and satellite imagery.

Eumetsat VIS image W Europe, 6:30 UTC. Satellite image source: Sat24.com / Eumetsat / Met Office