Avalanche Forecast
Issued: Mar 10th, 2022 3:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Persistent Slabs.
matt,
Avalanche Canada
Tomorrow will have increasing winds at all elevations. Watch for fresh wind loading.
Summary
Confidence
Weather Forecast
Another cold start for tomorrow. The overnight low will be -18, with a high of -8. Skies will be partly cloudy with westerly winds increasing throughout the day. Flurries are expected to start late in the day as well.
Avalanche Summary
Nothing new today.
Snowpack Summary
Today's trip took us to the northern section of the Spray. Light alpine winds have formed thin wind slabs on all aspects. These seem reasonably well bonded, but in shallow areas they are more reactive. Treeline and below still feel quite settled with only localized windslabs being a problem. The crust is still the main concern and deserves respect as there are likely loose sugary facets on top of it. Solar aspects at all elevations should be evaluated. It is down 30-40cm now.
Terrain and Travel
- Be aware of highly variable recent wind loading patterns.
- Be alert to conditions that change with elevation and wind exposure.
- Wind slabs may be poorly bonded to the underlying crust.
- Minimize exposure to sun-exposed slopes when the solar radiation is strong.
Problems
Wind Slabs
These will build quickly with the increasing winds tomorrow.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
Carefully evaluate the bond with the Feb 19th crust down 40 to 60cm. Recent wind loading will make this problem more reactive, as will periods of intense solar input.
Aspects: South East, South, South West, West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 11th, 2022 3:00PM
