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Avalanche danger forecast for
Monday 2/17/2020



AVALANCHE DANGER  

Freezing level at 3000 m. Moderate to strong winds from south-west.

Monday 2/17/2020
  

< 2500-2700 m


Avalanche problems: wet snow and wind-drifted snow.

Natural release avalanches
Small/medium-sized surface wet snow avalanches, of loose snow or slabs, from the rocky bars and the very steep sunny slopes, below 2800/3000 m.
Rising danger in the central and hottest hours of the day, especially in the north-western sectors of the region, where there are greater amounts of recent snow.

Triggered avalanches
Rarely a skier/hiker can release soft slab avalanches, of small or medium size, from very steep slopes above 2200 m. Snowdrift accumulations are clearly visible and are found mainly at north-eastern aspects, especially in basins and gullies and behind the leeward bumps. On the other hand, the ridge areas and the hills are mainly eroded.
For the entry of winds from SW, possible formation of new accumulations. 

On the slopes much more exposed to winds and moving towards south/east, where it has always snowed less and there are less accumulations, the avalanche danger is lower, while it remains a problem the danger of slipping on sheets of snow strongly hardened by the sun, rain or wind. Useful crampons.


AVALANCHE DANGER TREND  Tuesday 18:    Wednesday 19:  

Constant. New possible accumulations for moderate to strong wind activity from SW. Drop in temperatures.


GENERAL CONDITION
updated to 2/16/2020
 

Snow cover
Currently the snow is fairly poor in the central valley, but the recent snowfall has again whitened the landscape above 1000 m. In the lateral valleys the snow is continuous from the valley floor.
The intensity of the north-western winds, especially at high altitudes and close to ridges and hills, has moved a large part of the fresh snow away, bringing again to the surface old snow and soil. While at the intermediate altitudes, soft accumulations have formed, on average 40-50 cm thick.

Avalanches observed (last 48h)
Some small/medium natural release avalanches of wet snow, especially from very steep sunny slopes, close to the rocky bars. Some small/medium-sized avalanches triggered at the passage of a single skier, released above 2200 m, mainly at south-eastern aspects, in areas of evident accumulation. The superficial slabs (recent snow releasing on inner crusts), once triggered, slide little.

Skiing conditions: good in the north-west
At north sides, dry powder snow: even if pressed by the wind above the treeline and although the hard bottom is felt by the ski at times, it is very nice to ski. At southern aspects the recent snow is in rapid humidification, with melt and freeze crusts in formation.
Below about 2500 m, hard and slippery slabs (old crusts from rain melt/freeze and wind) still outcrop on the bumps, while climbing towards ridges and hills there are hard old snow, rocks and bare soil.

Weather forecast

SNOW AND WEATHER CONDITIONS OF THE 7 LAST DAYS (testing and validation phase)  
Monte Bianco Gran Paradiso Monte Rosa

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° 88 issued on 2/16/2020 at 00:00 p.m.
Valid outside the ski runs controlled and managed by the ski resorts.
For an accurate interpretation of the Bulletin, go here