Avalanche Forecast
Issued: Mar 20th, 2024 2:30PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
jfmichaud,
Avalanche Canada
👉 ATTENTION - BULLETIN VALID FOR MARCH 21th AND 22th 👈
The expected storm will quickly increase the avalanche danger. A storm slab problem can be expected to develop gradually on Thursday and to persist on Friday.
Conservative route choices are advised.
Summary
Confidence
Low
Avalanche Summary
No new avalanches observed or reported.
If you head into the backcountry, thanks for sharing your observations on the Mountain Information Network (MIN).
Snowpack Summary
Before the storm, between 5 and 15 cm of new snow had fallen at altitudes above 600 m. The snow remained light on the polar slopes. This snow covers a refreezing crust that formed last week with the warm temperatures and solar heating.
The average height of the snow cover is around 100 cm, but is highly variable from one area to another. The wind has greatly redistributed the snow in the alpine region, creating great spatial variability.
Weather Summary
Synopsis: A low-pressure system from the Great Lakes brings heavy precipitation and wind to the Chic-Chocs.
Thursday evening and night: Traces of snow. Southeast wind, 30 to 50 km/h. Minimum -4.
Thursday: Snow. 15 to 20 cm. Wind east, 50 to 70 km/h. Maximum -4. Freezing level at 400 m.
Friday: Snow 10-15 cm. Wind northwest, 40-50 km/h. High -13.
Saturday: Alternating sun and clouds. Wind southwest, 20 to 40 km/h. Maximum -10.
For more details, check out the most recent alpine weather forecast.
Terrain and Travel Advice
- Storm slab size and sensitivity to triggering will likely increase through the day.
- As the storm slab problem gets trickier, the easy solution is to choose more conservative terrain.
- Storm snow and wind is forming touchy slabs. Use caution in lee areas in the alpine and treeline.
Problems
Storm Slabs
With the intensity of the snow expected on Thursday and Friday (3 to 5 cm per hour at times), we can expect a storm slab problem to appear gradually during the day on Thursday and persist into the weekend.
The problem will be greatest on slopes leeward from the southeast wind on Thursday and from the northwest wind on Friday.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Mar 22nd, 2024 3:00PM
