Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–2.5
Fresh windslabs sit on a variety of old surfaces, these will take several days to settle and stabilize.
Bulletin d’avalanche
Voir sur la carteJasper
Mar 12 – 13, 2019Parks Canada
Archivé · expiré 8 years ago
Danger d’avalanche
Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
Points saillants
The new snow will require several days to stabilize, a cautious approach to avalanche terrain is recommended.
Problèmes avalancheux
Loose Dry
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - Likely
- Taille
- 1–2.5
Natural triggering has abated but human triggering remains a possibility, particularly in steep sheltered terrain.
Weather Forecast
A westerly flow continues and a much weaker front will track through bringing light precip and rising freezing levels for Thur and Fri. Wednesday: A mix of sun and cloud. Alpine low -12C, High -10 C. Ridge wind light west.
Snowpack Summary
Up to 15cm of new snow came in with strong to extreme SW winds. Previous old surfaces were; loose facets in sheltered terrain; wind affected in exposed areas; and, sun crust to treeline on solar aspects. The mid/lower snowpack is relatively strong for the region in deeper snowpack areas, and weak and facetted in shallow snowpack areas.
Avalanche Summary
A group of skiers triggered a large windslab avalanche in the backcountry near Marmot Basin Tuesday.A widespread cycle of small-large loose dry avalanches occurred Monday night during the snow and wind storm - these started small, but scrubbed down in to the facets.Several large windslab avalanches on alpine NE aspects also ran during the storm.