jeudi 6 février 2014
Winter Weather Live Updates: Winter Storm Orion Roars into Pacific Northwest
http://www.weather.com/news/weather-winter/winter-storm-live-updates-snow-ice-latest-20131106
European Storm Forecast Experiment
Storm Forecast
Storm Forecast
Valid: Fri 07 Feb 2014 06:00 to Sat 08 Feb 2014 06:00 UTC
Issued: Thu 06 Feb 2014 17:22
Forecaster: TUSCHY
Valid: Fri 07 Feb 2014 06:00 to Sat 08 Feb 2014 06:00 UTC
Issued: Thu 06 Feb 2014 17:22
Forecaster: TUSCHY
Two level 1 areas were issued for SE-France, the Vosges and NW/W-C Italy mainly for excessive rain. Coastal areas also see an isolated large hail, severe wind gust and tornado risk.
A level 1 was issued for SW-UK mainly for severe wind gusts and an isolated tornado event.
A level 1 was issued for SW-UK mainly for severe wind gusts and an isolated tornado event.
Guernsey endures 'horrendous' weather U K
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A severe storm with conditions described as "horrendous" has battered Guernsey's east coast overnight.
Alderney coastal defences were attacked by huge waves, although the roads and buildings remained flood free.
Guernsey suffered as wind speeds hit Storm Force 10 - with ten trees downed around the island.
Parked cars floated from their spaces as flooding caused the closure of the bulk of the coast road, between Bulwer Avenue and the Val De Terres.
The Rohais Du Haut, Saline Road and the Hougue Mague are still closed but police said the rest of Guernsey's main roads were now clear.
Chad Murray, the harbourmaster in Guernsey, said: "Some of the boats that had been laid up for winter maintenance have now fallen off their blocks and are lying on their side.
"Others are precariously balanced, so we've had to close off the area."
Castle Emplacement was one of the worst hit areas.
Police described conditions on Guernsey overnight as "horrendous" with "extensive damage" in the Castle Emplacement area.
About 300 homes in St Peter Port lost power during the height of the storm after an electricity sub-station flooded.
mercredi 5 février 2014
HEAVY SNOW,FREEZING RAIN
| Mesoscale Discussion #0075 Issued: 05/1039 UTC Until: 05/1445 UTC Concerning: HEAVY SNOW |
| Mesoscale Discussion #0074 Issued: 05/0823 UTC Until: 05/1330 UTC Concerning: HEAVY SNOW |
| Mesoscale Discussion #0073 Issued: 05/0557 UTC Until: 05/1100 UTC Concerning: HEAVY SNOW |
| Mesoscale Discussion #0072 Issued: 05/0544 UTC Until: 05/1045 UTC Concerning: FREEZING RAIN |
mardi 4 février 2014
Prévision nationale des risques orageux
PREVISION GLOBALE TOUS RISQUES CONVECTIFS
| |
PROBABILITE DE TORNADE
QUALIFICATION GENERALE DU RISQUE CONVECTIF...
Risque orageux diffus dans le sud-est puis arrivée d'une traîne active dans un contexte tempétueux dans le nord-ouest la nuit prochaine.
ANALYSE SYNOPTIQUE ET DE MESO-ECHELLE...
Un thalweg d'altitude étroit et peu dynamique est positionné sur le centre du pays ce matin. Il migre vers l'est pour évacuer la France en fin de journée.
Parallèlement, un nouveau système dépressionnaire arrive par l'ouest ce mardi après-midi. La dépression tempétueuse Petra, qui s'est creusée de manière explosive la nuit dernière au sud-ouest de l'Irlande, pilote une perturbation active qui balaie tout le pays d'ici la fin de nuit prochaine. A l'arrière du front froid, le thalweg d'altitude gagne l'ouest de la France avec un nouveau refroidisssement sensible de la masse d'air à l'étage moyen, ainsi favorable au développement de la convection de masse d'air froid. |
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