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Avalanche danger forecast for
Wednesday 12/19/2018



AVALANCHE DANGER   Wind slabs above the treeline, mainly at E and NE slopes
Wednesday 12/19/2018
  


> 2200 m

The avalanche danger level is 3-considerable in the west and north of the Region, 2-moderate elsewhere.

Artificial triggered avalanches - critical aspects E and NE, mainly close to ridges.

Persistent weak layers problem: in the inner snowpack old hard slabs. Positive thing: the weak layer is more difficult to reach; negative thing: the weak layers is more difficult detect and the possible triggered avalanche can have a large size.

Wind-drifted snow problem: with the weak snowfalls expected on Wednesday afternoon, associated to moderate/strong SW winds, new accumulations could form, especially in the north-western areas of the Region.

Natual avalanches - limited activity
Since the afternoon possible releases of loose snow and superficial slabs on the very steep slopes.


AVALANCHE DANGER TREND  Thursday 20:    Friday 21:  

Steady


GENERAL CONDITION
updated to 12/17/2018
 

Snowcover
Snow from the valleyfloor everywhere, but enough for skitouring only above 1900-2300 m. Good snowcover above 2300-2400 m, even if irregular thanks to the wind.

Snowpack
The deep layers are generally stable. The upper part of the snowpack has a slab structure both soft and hard. The weak layer is formed by facets. Moreover, surface hoar has been observed on the north aspects, partially covered by the recent snowfall.

Triggered avalanches
On Sunday and Monday slab avalanches have been triggered by skiers on the Est and North-East slopes, without consequences.

Skiing conditions
Good powder snow in the sheltered areas; otherwise wind-drifted snow both chalky and more compacted by wind. Below 2300 m pay attention to the stones just covered by recent snow.

Weather forecast

EUROPEAN AVALANCHE DANGER SCALE Rising avalanche danger during the day
 
5
VERY HIGH
 
4
HIGH
 
3
CONSIDERABLE
 
2
MODERATE
 
1
LOW

TYPICAL AVALANCHE PROBLEMS   CRITICAL LOCATIONS
NEW SNOW
WIND-DRIFTED SNOW
PERSISTENT WEAK
LAYERS
WET SNOW
GLIDING SNOW
IN BLACK: THE MORE CRITICAL ASPECTS AND ELEVATIONS
Snow and avalanche bulletin n° 21 issued on 12/18/2018 at 00:00 p.m.
Valid outside the ski runs controlled and managed by the ski resorts.
For an accurate interpretation of the Bulletin, a specific guide is available at