jeudi 5 septembre 2013
mercredi 4 septembre 2013
European Storm Forecast Experiment
Storm Forecast
Storm Forecast
Valid: Thu 05 Sep 2013 06:00 to Fri 06 Sep 2013 06:00 UTC
Issued: Wed 04 Sep 2013 21:51
Forecaster: GATZEN
Valid: Thu 05 Sep 2013 06:00 to Fri 06 Sep 2013 06:00 UTC
Issued: Wed 04 Sep 2013 21:51
Forecaster: GATZEN
A level 1 was issued for northern Algeria and Tunisia mainly for large hail.
A level 1 was issued for Sardinia and surroundings mainly for excessive rain.
A level 1 was issued for western central Spain mainly for large hail and severe wind gusts.
SYNOPSIS
The amplified trough over eastern Europe cuts of an forms a closed upper low centred across the north-eastern Ukraine. To its west and north, the Alpine mid-level high ridges into Scandinavia. Western Europe is affected by rather low geopotential. A trough centre is located over north-western Iberia and another cut-off process in underway over the British Isles. Additionally, a weak cut-off remains near Sardinia.
Best low-level moisture can be found in an easterly flow regime across the south Mediterranean with mixing ratios in excess of 13 g/kg. Rather good moisture is also present in the warm air mass that extends across west-central Europe. However, lapse rates are rather poor over most places except for the Iberian Peninsula and northern Africa.
A level 1 was issued for Sardinia and surroundings mainly for excessive rain.
A level 1 was issued for western central Spain mainly for large hail and severe wind gusts.
SYNOPSIS
The amplified trough over eastern Europe cuts of an forms a closed upper low centred across the north-eastern Ukraine. To its west and north, the Alpine mid-level high ridges into Scandinavia. Western Europe is affected by rather low geopotential. A trough centre is located over north-western Iberia and another cut-off process in underway over the British Isles. Additionally, a weak cut-off remains near Sardinia.
Best low-level moisture can be found in an easterly flow regime across the south Mediterranean with mixing ratios in excess of 13 g/kg. Rather good moisture is also present in the warm air mass that extends across west-central Europe. However, lapse rates are rather poor over most places except for the Iberian Peninsula and northern Africa.
mardi 3 septembre 2013
European Storm Forecast Experiment
Storm Forecast
Storm Forecast
Valid: Tue 03 Sep 2013 06:00 to Wed 04 Sep 2013 06:00 UTC
Issued: Mon 02 Sep 2013 14:44
Forecaster: PISTOTNIK
Valid: Tue 03 Sep 2013 06:00 to Wed 04 Sep 2013 06:00 UTC
Issued: Mon 02 Sep 2013 14:44
Forecaster: PISTOTNIK
A level 1 was issued for parts of Poland, Belarus and the Ukraine for severe wind gusts and tornadoes.
SYNOPSIS
A pronounced low-pressure system moves southeastward over Belarus and the Ukraine, with a jet streak that curves around its Western and Southern flank. Further upstream, a West-East aligned frontal zone establishes over the Atlantic to the North of the British Isles.
Much of Western, Central and Southern Europe will be under anticyclonic influence with seasonable temperatures, whereas a surge of cool air spreads southward in Eastern Europe. Poor lapse rates throughout Europe bring about a mostly calm day convection-wise.
SYNOPSIS
A pronounced low-pressure system moves southeastward over Belarus and the Ukraine, with a jet streak that curves around its Western and Southern flank. Further upstream, a West-East aligned frontal zone establishes over the Atlantic to the North of the British Isles.
Much of Western, Central and Southern Europe will be under anticyclonic influence with seasonable temperatures, whereas a surge of cool air spreads southward in Eastern Europe. Poor lapse rates throughout Europe bring about a mostly calm day convection-wise.
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