Avalanche Forecast
Issued: Dec 10th, 2022 4:00PM
The alpine rating is Wind Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeBe vigilant regarding the persistent weak Surface hoar layer down 30cm. If the snow above become more cohesive into a slab condition, it could wake up unexpectedly.
Summary
Confidence
Moderate
Avalanche Summary
No field patrol occurred Saturday. No new avalanches have been observed or reported in the last 2 days.
Snowpack Summary
5-10cm of snow arrived Dec 8th which overlies previous Windslab surfaces formed by Dec 7-8th Moderate Southwest winds in the alpine. A surface hoar layer is down 25-35cm and is located in Treeline sheltered areas. The snowpack ranges from 40-100cm deep and can be unsupportive in locations.
Weather Summary
Weather for Parkers ridge Saturday night will be light snow, -9 °C, and light Southwest winds. Expect on Sunday sun and cloud, no new snow, -6 °C, and light winds. Monday and Tuesday is forecasted to be similar to Sunday.
Terrain and Travel Advice
- Surface hoar distribution is highly variable. Avoid generalizing your observations.
Problems
Wind Slabs
Winds have tapered off into the light range yet this condition persists in Alpine start zones from previous moderate to strong winds.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine.
Likelihood
Expected Size
Persistent Slabs
Marmot Basin Ski area reports buried surface hoar extending into some alpine features. Investigate this layer before committing to terrain. Whumpfing and shooting cracks have been observed on this layer yet but no natural avalanches have been observed as a result.
Aspects: All aspects.
Elevations: Treeline, Below Treeline.
Likelihood
Expected Size
Valid until: Dec 11th, 2022 4:00PM