Avalanche bulletin and weather forecast Savoie

This avalanche translation of the Meteo France avalanche bulletin is produced mainly through an automated translation tool.  Please use it in conjunction with the French bulletin found at the above link.

N73080411
BULLETIN FOR ESTIMATING THE RISK OF AVALANCHES
FOR SAVOIE
Valid off marked and open trails
FOR WEDNESDAY 9 APRIL 2008
(Written Tuesday, April 8)

ESTIMATE OF RISK UNTIL WEDNESDAY EVENING:
On all except the Bauges massive lack of information:
-- Above 2200/2400 m: RISK MARK - Level 3
-- Below 2200/2400 m: LIMIT RISK - Level 2

WEATHER OVERVIEW UNTIL WEDNESDAY EVENING:
Clearing night and morning. Precipitation from the middle of the day. Limit rain-2500 m. We expect less than 10-2700 m. Foehn and Lombarde near the border.
Isothermal 0 2200 2700 m.
Wind General 3000 meters: Southwest to South 20/40 and 40/60 km / h.

SNOW CONDITIONS:
They are good, with layers of snow on the ground often higher than the averages in early April, locally near or below. There is at 1500 m: 0 to 60 cm to 100 cm locally Beaufortain, 2000 m: 50 to 180 cm by 280 cm locally Beaufortain. The lower limit of skiable snow falls between 1000 and 1900 m.
On the surface, in the morning, a little snow recently, sometimes windy, snow covers a crust by regel below 1800 m in northern steep slopes undergoing somewhat the effect of solar radiation, and higher elsewhere, until very high altitude in South steep slopes sunny, then it becomes damp during the day. In other sectors suffering somewhat the effect of solar radiation, the recent snow is thicker, more or less packed when it is not cardboard or cured by the wind. On Wednesday morning, it will be wet by rain and regelée below 2000 m, covered with a bit of snow earlier.

STABILITY OF SNOW COVER:
A LITTLE NATURAL ACTIVITY and some SUPERFICIAL SLABS
Snowfall and wind expected will form some new superficial slabs, especially over 2500/2700 m and in various sectors especially near the border. Other superficial slabs, formed recently by winds north and then west to south-west with Foehn / Lombarde remain above 2200/2400 m. Their adherence to the crust or snow more or less recent (or angular) is not assured. Some artificial and accidental releases to be reported this morning, friable plaque or hard sometimes thick above 2200 m above all on display Northeast.
With the wind, sun, then redoux rainfall, few natural attrition will occur sufficiently steep slopes, a few in all exhibitions. The cast of wet snow surface more or less onerous occur mostly below 2500/2700 m. The Avalanche substantive wet snow can also occur in steep grassy, especially below 2000/2200 m and exhibitions South East to South-West, particularly in the Bauges. Above 2500/2700 m, the surface prevail cast of snow or more dry patches more or less friable. A fortiori, such overloading the passage of one or more skiers can promote the initiation of these flows or avalanches.
In particular, a single skier can stall a surface slab lasts more or less then that can cause the breakdown of another slab more or less buried. Overloading more or less strong as the passage of several skiers can stall a slab sometimes quite thick. This risk remains stronger accidental above 2200/2400 m in the morning and then a little higher in the afternoon, and the slopes undergoing somewhat the effect of solar radiation exposure including Northwest North East even East to southeast.

TREND LATER RISK:
Stationary or rising slightly Thursday.

Weather updates France this newsletter everyday at 16h.