Avalanche Forecast
Issued: Mar 9th, 2025 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs, Loose Dry and Wind Slabs.
Parks Canada,
Avalanche Canada
Heavy snowfall has resulted in over 50 cm of new snow, with more expected, in the northern part of the forecast region. The avalanche danger is expected to remain HIGH over the next few days.
Parks Canada will be conducting avalanche control on Mt Bosworth and Mt Stephen on Monday, March 10. No access to these zones on March 10.
Summary
Confidence
No Rating
Weather Summary
An atmospheric river will continue to bring heavy snowfall to the region Sunday night. This system has primarily affected the northern parts of the region. Snow amounts so far ranges from over 50 cm at Bow Summit to 10 cm in the Simpson area. An additional 20 to 30 cm of snow is possible Sunday night before conditions begin to clear. Winds will start to decrease Monday, and freezing levels will drop to valley bottoms.
Terrain and Travel Advice
- Avoid avalanche terrain during periods of heavy snowfall.
- Loose avalanches may step down to deeper layers, resulting in larger avalanches.
Problems
Persistent Slabs
Over the past week, numerous avalanches have occurred on these layers (20-50cm deep). With incoming snow and strong winds this weekend, the likelihood of both natural and human-triggered avalanches will rise.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Loose Dry
Strong alpine winds on Saturday triggered many small loose dry events in lee terrain. Expect this activity to continue and spread to lower levels as the storm progresses Sunday.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Wind Slabs
Strong SW winds developed overnight Friday and have been moving snow all day Saturday. On solar aspects slabs will sit on suncrusts while on sheltered, shaded slopes they may sit on surface hoar. Expect these fresh, sensitive surface slabs to develop as the storm progresses.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 10th, 2025 4:00PM
