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Avalanche danger forecast for
Tuesday 1/16/2018


AVALANCHE DANGER   Very strong wind and new precipitation - rising danger level
Tuesday 1/16/2018
The avalanche hazard level is 3-considerable in the Rhmes Valley and in the sector D due to the ongoing precipitation accompanied by winds also very strong from WNW, 2-moderate upward to 3-considerable on the rest of the territory because of the wind.
Avalanche problems: fresh snow and wind-drifted snow.
Over 3000-3500 m ridges eroded due to the very strong winds, while at medium altitudes (between 2000 and 3000 m) a lot of loose snow that is easily transportable with widespread accumulation, even large.
Triggered avalanches:
- above the limit of the forest, the passage of a single skier/hiker, can trigger superficial slabs, even of medium size, on steep slopes, at all expositions (given the very strong winds) - in particular on changes of inclination, entry of canals, but also in open slopes.
Attention - in the areas most affected by snowfall a layer of surface hoar is incorporated and constitutes a potential plane for the sliding of the fresh snow (except for the S exposures).

Natural avalanches: during the day natural avalanches, especially in the areas most affected by precipitation with
spontaneous avalanches are few and smaller in size.
- loose snow discharges from very steep slopes;
- slab avalanches, in some cases of medium size, which, when detached from high altitudes, may in individual cases reach the bottom of the valley, going a long way. Unfortunately, the avalanche channels are already partially obstructed, so a new avalanche could come out of the usual margins; - under 2200-2000 m avalanches to the ground of wet snow, which in some cases could affect the road network.

Trend of the avalanche danger: rising throughout the region due to moderate snowfall and strong wind.
KEY Critical slopes altitude and aspects Rising avalanche danger during the day
Hazard scale
5
VERY HIGH
4
HIGH
3
CONSIDERABLE
2
MODERATE
1
LOW

GENERAL CONDITION
updated to 1/15/2018
 
Snow amount
Very good on the whole region above 2000 m. Poor/absent under 1300-1500 m.
Settlement at 2000 m: from Saturday the snowpack has lost an average of 5-10 cm of thickness.

Snowpack stability
The stability has well improved, above all thanks to the weight of the snow itself and to the drop in temperatures (average temperature at 2000 m at h 7.00 from -8 to -10C).
.
It's unlikely that triggered avalanches can involve the entire slope.
The avalanche activity has been greatly reduced to loose snow sluffs from rocky bar and extremely steep slopes.
The coldest slopes (exposures E-N-W) and sheltered from the wind of the last week, have a surface hoar layer of even thickness 4 cm.

Skiability : good
On steep slopes from south to west up to 2400 m there is a freeze crust, also hard, which becomes soft during the day.
Still powder in the north aspects: about 10-20 cm on hard layer.
In the most windy areas the snow is a bit more chalky and alternates, in a small space, with winding layers also hard and load-bearing. With the skis you sink from 10 to 20 cm; without skis to the knee/ankle.
Weather forecast
Snow and avalanche bulletin n 46 issued on 1/15/2018 at 00:00 p.m.
Snow and avalanche Bulletin: +39 0165 776300
Weather Bulletin: +39 0165 272333
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