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.

N74210111
BULLETIN SNOW AND AVALANCHE BULLETIN FOR HAUTE SAVOIE
(VALID OFF MARKED AND OPEN TRAILS)
PREPARED ON MONDAY 21 JANUARY
FOR TUESDAY 22 JANUARY

ESTIMATE OF RISK UNTIL TUESDAY EVENING:
All mass of Haute Savoie: limited risk (level 2).

WEATHER OVERVIEW UNTIL TUESDAY EVENING:
The sky is covered in the night and then snow falls without interruption Tuesday morning. The rain/snow limit drops rapidly to 1200 m. Quantity approximately 20 cm of snow with a bit of wind from the northwest. Tends to the lull in the afternoon, but still some snow showers especially in the Chablais.

Isothermal 0 1600 1400 m.
Wind at 2000 m: West 60 km / h and then Northwest 30 km / h.
Wind at 4000 m: West then northwest 90 km / h.

SNOW CONDITIONS:
The snow is good except at low altitudes below 1200 m, where it is quite low. Towards 1500 m, there are about 80 cm of snow in northern slopes, 40 cm in the South. It is fitting the skis to 1000 m in the shade, 1300/1400 m in the South.
Quality of snow on Tuesday: On the average mountain, the thicker layer of powder over of the morning. It is based on an old hard snow crust and often not very easy to ski. In the high mountains, the new snowfall is likely to be a bit compacted in sectors exposed to the winds of West and Northwest.

STABILITY OF SNOW COVER: formation of slabs

Fresh snow on Tuesday morning settles on a snowpack fairly well stabilized. With the strong winds from west and then northwest, a few fragile accumulations occur throughout the day in the upper slopes near the peaks and passes. These slabs are expected to remain relatively few but likely to break with the passage of a single skier. It is important to take into account the configuration of the field to choose its path, including guidance in North, East and South-East.

On the other hand, a small risk of bottom slabs persist in the Chablais and Aravis. Rare departures are possible in steep grassy surface, orientation South West lower than 1800 meters.

TREND FOR WEDNESDAY:
Risk stationary, training some new slabs with the Bise.

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