Alpes du Sud
Haut-Var/Haut-Verdon
Avalanche Problems
Wind slab
1
Field notes
Look for fresh snow deposits on Slope facing downwind/ wind sheltered aspect. Snow deposits can attain several times average snow depth.EAWS glossary, in Usually a steep, elongated, eroded trench; typically prone to snowdrift accumulation.EAWS glossary and Rounded or elongated concavity; typically tending to accumulate snowdrift.EAWS glossary, and behind ridgelines and abrupt changes in terrain — these are where the wind has loaded the snow into slabs that are easy to trigger. Recent avalanches, shooting cracks under your weight, and Distinctive noise (resembling a “whumpf” sound) occurring when a weak layer beneath a slab collapses. The air of the weak layer is forced outside the snowpack, with the resulting whumpf sound being heard. The sound usually indicates an unstable situation and can be accompanied by surface cracking. A whumpf is a clear avalanche alert.EAWS glossary sounds are clear confirmations of the problem. The safest move is to avoid wind-loaded terrain entirely. NB wind signs alone don't always mean an avalanche problem exists, and the age of drifted snow is hard to judge.
Avalanche Activity
MANTEAU NEIGEUX PEU ÉPAIS
peu probables.
peu probables en général. Très rares petites plaques possibles dans la neige récente ventée à proximité de l'Ubaye, en versant nord au dessus de
2500 m, là où l'on trouvais de la neige sans cohésion en surface, pouvant faire office de couche fragile.
Outlook
Constant avalanche danger
Snowpack & Weather
Snowpack
Situation avalancheuse typique
neige ventée
Déclenchements provoqués : peu probables en général. Très rares petites plaques possibles dans la neige récente ventée à proximité de l'Ubaye, en versant nord au dessus de
2500 m, là où l'on trouvais de la neige sans cohésion en surface, pouvant faire office de couche fragile.
Départs spontanés : peu probables.
Outlook
Indice de risque faible
aintien d'un risque faible, en l'absence de
ouvelles chutes de neige.