Avalanche Forecast
Issued: Mar 30th, 2021 8:05AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
Kate Ryan,
Carefully evaluate storm slab reactivity as you travel today.
Caution is required, especially in wind exposed areas where human triggering is likely!
Summary
Weather Forecast
Cooler and drier conditions will prevail again today. Expect all types of weather today (sun, cloud, snow, and wind), as Spring convective conditions persist. Clouds are forecast to clear this evening, and temperatures remain cool. Tomorrow, a warmer airmass begins to move in, bringing a mix of sun and cloud and freezing levels rising to 1800m.
Snowpack Summary
Since Friday, Rogers Pass has received ~85cm of snow at treeline! Strong Southerly winds and warm temperatures that accompanied the new snow has formed reactive storm slabs. The March 18th layer is now buried 40-100cm depending on aspect and elevation.
Avalanche Summary
Numerous natural and artificially triggered avalanches occurred on the weekend in the Highway Corridor. The average size was 2 to 3, with several size 3.5s, and a few size 4s. There was one skier accidental Min report from Hospital Gullies yesterday. A report from Connaught Creek yesterday mentioned Grizzly Slide Path buried the skin track.
Confidence
Problems
Storm Slabs
A significant storm Sunday brought plenty of snow, wind, and warm temperatures to Rogers Pass. Cooler temps since seem to have decreased sensitivity of this layer, but it still deserves respect especially in wind affected areas.
- Watch for signs of instability such as whumpfing, or cracking.
- Use caution in lee and cross-loaded terrain near ridge crests.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 31st, 2021 8:00AM
