Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - Likely
- Taille
- 1–3
Loaded, cross-loaded and re-loaded lee features still producing touchy slabs.
Bulletin d’avalanche
Voir sur la carteJasper
Dec 14 – 15, 2014Parks Canada
Archivé · expiré 12 years ago
Danger d’avalanche
Sun
Mon
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
Points saillants
Load is the word of the day. Look for loaded and cross-loaded areas. Don't overload the slope from shallow areas. Load your pack with food and water for a big day, and un-load your memory card and load it back up with blue-bird pictures!
Problèmes avalancheux
Deep Persistent Slabs
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - Likely
- Taille
- 1–3
Deep persistent slabs at treeline and sheltered sub-alpine slopes still reactive from shallow areas within the snowpack.
Weather Forecast
Outstanding cool day expected in the forecast area. Temperatures expected to start down in the minus mid-teens in the morning and warm to cool single digits over the day. Light variable winds shifting north to south over the day. Comfortable day to be digging in the snow looking for crusts.
Snowpack Summary
A steady cooling trend overnight and over the day tightening up the storm instability. Touchy conditions still exist in isolated areas at tree line and sub alpine elevations in cross-loaded and lee features. The facet crust layers near the base of the snowpack are the most susceptible to human triggering especially from shallow areas.
Avalanche Summary
Previous activity offering interesting results on the November rain crust persistent weak layer. Long delays of a few minutes after an explosive detonation at Marmot Basin released a size 3 that ran much further than expected from a heavily loaded ridge top feature.