Storm Forecast Valid: Thu 19 Jun 2014 06:00 to Fri 20 Jun 2014 06:00 UTC Issued: Wed 18 Jun 2014 22:52 Forecaster: GATZEN
A level 2 was issued for north-western Turkey mainly for very large hail, tornadoes, and to a lower extend excessive rain and severe wind gusts.
A level 2 was issued for eastern Bulgaria and north-eastern Greece mainly for excessive rain.
A level 1 was issued for the central Balkans, northern Greece, and southern Romania mainly for large hail and excessive precipitation.
A level 1 was issued for eastern Spain mainly for large hail and to a lower extend severe wind gusts.
A long-wave trough is placed over southern Europe, centred over Italy. A strong mid-level jet streak at its southern periphery is directed towards the Aegean Sea region on Thursday morning. The long-wave trough will accelerate east at the southern flank of a new polar outbreak into northern and central Europe. Mid-level ridging will affect the west Mediterranean and east Iberia therefore. Western Iberia is affected by an Atlantic cut-off low. At lower levels, an axis of warmed polar air has developed from southern France across the Alps into the Ukraine. Another plume of warm air evolves ahead of the cut-off low over Spain. Cold air advection is dominant from northern Europe into Germany as well as over south-east Europe.