Avalanche Forecast
Issued: Mar 20th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs and Loose Wet.
ahanna,
Avalanche Canada
While conditions are gradually improving with cooling temperatures, very large persistent slab avalanches may remain triggerable in areas not capped by a thick surface crust.
Summary
Confidence
Avalanche Summary
No new reports of avalanches but data is limited in this region. If you go out in the mountains, please consider posting your observations on the Mountain Information Network!
Snowpack Summary
A skiff of new snow sits over predominantly crusty surfaces. Lower elevations may remain moist.
A widespread, hard crust down 40 - 130 cm with weak facets above continues to be the primary layer of concern for human triggering of very large persistent slab avalanches.
Weather Summary
Wednesday night
Cloudy with isolated flurries bringing up to 7 cm. 20 to 30 km/h northwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1500 m.
Thursday
Mostly sunny. 20 to 40 km/h northwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1800 m.
Friday
Increasing cloud. 10 to 20 km/h variable ridgetop wind. Treeline temperature -2 °C. Freezing level 1700 m.
Saturday
Cloudy with isolated flurries, 2 to 4 cm. 10 to 20 km/h northeast ridgetop wind. Treeline temperature -3 °C. Freezing level 1600 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Avalanche hazard may have improved, but be mindful that deep instabilities are still present.
- Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
- When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
Problems
Persistent Slabs
A crust with weak facets above is down 40 to 130 cm. Steep or convex terrain features with a shallow or thin to thick snowpack at treeline and above are the most likely places to trigger this layer.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Loose Wet
If triggered loose wet avalanches may step down to deeper layers, resulting in very large avalanches.
Aspects: All aspects.
Elevations: Treeline, Below Treeline.
Likelihood
Expected Size
Valid until: Mar 21st, 2024 4:00PM
