Bulletin d’avalanche

Cariboos

Mar 31 – Apr 1, 2012Avalanche Canada

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Archivé · expiré 14 years ago

Danger d’avalanche

Mon

Tue

Alpin

3 · Marqué

Limite forestière

2 · Modéré

Sous la limite

2 · Modéré

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Problèmes avalancheux

Wind Slabs
N
NE
E
SE
S
SW
W
NW
Alpin
Limite forestière
Sous la limite forestière
Probabilité
Likely
Taille
1–5
Forecast new snow and moderate gusty southwest winds may continue to build touchy windslabs on northeast aspects in the alpine and at treeline.
Storm Slabs
N
NE
E
SE
S
SW
W
NW
Alpin
Limite forestière
Sous la limite forestière
Probabilité
Possible - Likely
Taille
3–7
Recent storm snow may not bond well to a buried sun crust on southerly aspects.
Deep Persistent Slabs
N
NE
E
SE
S
SW
W
NW
Alpin
Limite forestière
Sous la limite forestière
Probabilité
Unlikely - Possible
Taille
4–8
Persistent weaknesses are buried about 150-200 cm below the surface. Avalanche activity on this interface has become less frequent, but large triggers like cornice fall may release a large avalanche.

Confidence

Fair - Intensity of incoming weather is uncertain on Tuesday

Weather Forecast

Sunday: Light precipitation is expected throughout the day. Freezing levels 800-1000m and winds light to moderate from the west. Monday: Continued light precipitation. Freezing levels rising to 1000-1500m. Winds moderate from the southwest. Tuesday: Moderate precipitation expected as pacific frontal system moves inland. Freezing levels 1000-1500m.

Avalanche Summary

Reports of human triggered avalanches to size 1.5. These are isolated to the newly fallen snow

Snowpack Summary

New snow has formed windslabs in the alpine, and added a new load to the very large cornices in the region. There is moist snow on all aspects below 1600 metres. Operators in the Cariboo are not talking about the mid-february deeply buried weak layer. There have not been any avalanches released on the deep layer for some time in this region.

Régions couvertes

Cariboos