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.
N74150311
SNOW AND AVALANCHE BULLETIN FOR HAUTE SAVOIE
(VALID OUT OF OPEN AND MARKED RUNS)
PREPARED ON SATURDAY MARCH 15
FOR SUNDAY MARCH 16
ESTIMATE OF RISK UNTIL SUNDAY EVENING:
All massive Haute-Savoie: limited risk (level 2).
WEATHER OVERVIEW UNTIL SUNDAY EVENING:
Snow tonight above 1800 and 1500 m (10 cm at 2000 m, 15 cm at 2500 m).
Sunday, a few light early in the day between the clouds and skies of
cumulus once loaded into the second part of the morning and afternoon,
with frequent snow showers (5 / 10 cm above 2000 m). The wind was
blowing from that night.
Isothermal 0 2000 1700 m.
Isothermal -10 GD: down to 3000 m.
Wind at 2000 m: Southwest 40 to 60 km / h.
Wind at 4000 m: West 60 to 80 km / h.
SNOW CONDITIONS:
Low for a mid-March, especially at low altitude. It is fitting
the skis from 1200 to 1300 m through North approximately 1800 m in the
South.
Quality of snow for Sunday:
There will be a
layer of snow above 1600 m, powder or blown, based on a wet snow below
2000 m, a sub-layer in a little crust north. Above 2000 m, this snow
will deposit in adrets on a spring snowpack being subjected often
crusty, and the northern slopes on an old cold and snow packed.
STABILITY OF SNOW COVER:
Some slabs on the snow
The snow is expected deposit on a rather healthy snowpack still with a
few nuances. As these snowfall accompanied by fairly strong winds, a
few wind slabs probably will form, so rather localized near the peak
or a big break in slope. The passage of a skier could be sufficient in
this case to trigger a slab avalanche not very large in general.
On the other hand, below 2300 m, cutting a steep slope that got
her going in the sun on Saturday, so rather to East, South and West, a
skier could possibly trigger a small avalanche in the snow from doing
well underlying wet and covered with snow, rather the morning before
the regel gets a little more snowpack in the afternoon.
At the risk of avalanches, it will be low, possibly a small purge in the afternoon in a steep corridor a little more responsible in fresh snow.
TREND LATER RISK:
Continued snowfall Monday, the risk of avalanche is expected to rise a notch.
Meteo-France updates this newsletter everyday at 16h or sooner if conditions warrant nivométéorologiques.
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