Avalanche bulletin and weather forecast Haute 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.

N74170311
SNOW AND AVALANCHE BULLETIN FOR HAUTE SAVOIE
(VALID OFF OF MARKED AND OPEN RUNS)
PREPARED ON MONDAY 17 MARCH
FOR TUESDAY 18 MARCH
ESTIMATE OF RISK UNTIL TUESDAY EVENING:
All massive Haute-Savoie: higher than 1800/2000 m: marked risk (level 3)
Lower than 1800/2000 m: limited risk (level 2)

WEATHER OVERVIEW UNTIL TUESDAY EVENING:
Latest snow tonight and the sky brightened gently that night. Good weather Tuesday with formation of cumulus clouds along the slopes.
Isothermal 0 1400 m.
Wind at 2000 m: north-east 20 to 40 km / h.
Wind at 4000 m: northwest 50 km / h.

SNOW CONDITIONS:
The latest snowfall has improved the snow-1500 m. This is still low at lower elevations.
Tuesday, we can put on skis or snowshoes to the feet at approximately 1200 m due north slopes. In the south, even if it is white, there will be no sub-layer up to 1800 meters.

Quality of snow for Tuesday:
It will evolve over a good thick snow that amount will increase in altitude, snow already packed and a bit heavy to below 2000 m above the snow will be blown powder or in areas prone. With the sun, the snow humidifies itself more or less on the surface up to 2200 m in the south.

STABILITY OF SNOW COVER: An instability by marked locations

Since this weekend, it fell between 20 and 30 cm of snow at 1500 m, 40 to 60 cm above 2500 m, all accompanied by moderate wind from the southwest

The risk of a slab avalanche with the passage of a skier remains present Tuesday. It is therefore necessary to be cautious, especially above 2000 m, as with the approach of peak, breach of slope or a part in a large convex slope, and beware especially of the areas of accumulation of snow formed by the wind. The kiss that will arise during the day could in turn train a few small, localized wind slabs.

In terms of the probability of spontaneous avalanche starting, it will not be very important but the return of the sun should encourage some casting or small avalanches of snow surface in recent heavier and a little wet after a good exposure to the sun. This risk concern the steep slopes East, South and West at altitudes below 2200 m, particularly near rocky areas.

TREND LATER RISK:
Risk down for Wednesday and Thursday.

Meteo-France updates this newsletter everyday by 16h or sooner if conditions warrant nivométéorologiques.