Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - Likely
- Taille
- 1–2
Strong SW winds, and significant amounts of snow available for transport have created wind slab in lee features.
Bulletin d’avalanche
Voir sur la carteJasper
Jan 13 – 14, 2019Parks Canada
Archivé · expiré 8 years ago
Danger d’avalanche
Mon
Tue
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
Points saillants
Minimize overhead hazard while the snowpack reacts to the rising freezing levels.
Problèmes avalancheux
Cornices
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–3
Rising freezing levels could result in fresh cornices to fail triggering deep instabilities.
Deep Persistent Slabs
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Unlikely - Possible
- Taille
- 1.5–4
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load. Build trust slowly in the new snowpack before committing to any large rideable slope.
Avalanche Summary
No new avalanche activity to report from field teams. Be a part of the Avalanche Forecasting team by reporting your field trip this weekend on Avalanche Canada's Mountain Information Network.
Confidence
Due to the number of field observations
Weather Forecast
Sun and rising freezing levels to around 2000m on Sunday. Winds look to be light south-westerly. A detailed mountain weather forecast is available from Avalanche Canada.
Snowpack Summary
Exposed terrain at TL and above have been hammered with wind. In sheltered terrain the snow surface is likely to change with warm temperatures. The upper half of the snowpack is settling into a uniform slab over deep persistent weakness' at the bottom of the snowpack. Use caution in shallow areas where these deep weakness might be more reactive.