An impressive satellite presentation currently over Greece. Two large multicell (possible supercell) clusters are ongoing in the last hours on the southern part of SLGT risk area of Day 1 Outlook 9/10/2013. One is located along the coast of western Greece, another one is further SW over Ionian sea. They’re both trailing / maitaining on the stationary surface boundary seen on satellite. These two storms pose a threat for heavy rain or even a waterspout/tornado given the good LL environment along the coast.
More storms are on going along the coastal areas of eastern Adriatic and Tyrrhenian sea, these storms are again capable od producing some heavy rain and funnel clouds/waterspouts.