Storm Forecast
Storm Forecast
Valid: Thu 23 Apr 2015 06:00 to Fri 24 Apr 2015 06:00 UTC
Issued: Wed 22 Apr 2015 15:40
Forecaster: GATZEN
Valid: Thu 23 Apr 2015 06:00 to Fri 24 Apr 2015 06:00 UTC
Issued: Wed 22 Apr 2015 15:40
Forecaster: GATZEN
A level 1 was issued for northern Algeria and Tunisia mainly for large hail.
SYNOPSIS
High-over-low blocking is present across the NE Atlantic, yielding a southern branch of the westerly jet that extends across the northern Iberian Peninsula into the Mediterranean. The northern portion of the westerly jet is located across Scandinavia into Russia. In between, a cut-off low is located over the eastern Alps. Pretty marginal low-level moisture can be expected over most areas. Locally enhanced moisture exceeding 7 g/kg in the lowest 500 m is indicated by latest GFS model along the southern flanks of the Alps, across the south-west Mediterranean, and from the Bay of Biscay into south-western France. Low-level moisture partly overlaps with steeper lapse rates evolving near the Alpine cut-off low and across the south-west Mediterranean area.
SYNOPSIS
High-over-low blocking is present across the NE Atlantic, yielding a southern branch of the westerly jet that extends across the northern Iberian Peninsula into the Mediterranean. The northern portion of the westerly jet is located across Scandinavia into Russia. In between, a cut-off low is located over the eastern Alps. Pretty marginal low-level moisture can be expected over most areas. Locally enhanced moisture exceeding 7 g/kg in the lowest 500 m is indicated by latest GFS model along the southern flanks of the Alps, across the south-west Mediterranean, and from the Bay of Biscay into south-western France. Low-level moisture partly overlaps with steeper lapse rates evolving near the Alpine cut-off low and across the south-west Mediterranean area.
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