Avalanche Forecast
Issued: Apr 11th, 2018 4:42PM
The alpine rating is Wind Slabs and Loose Wet.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Moderate - Due to the number of field observations
Weather Forecast
TONIGHT: 5-10 cm new snow. Light southwesterly ridgetop winds. Freezing level around 500 m.THURSDAY: Mix of sun and cloud with isolated flurries. Light southwesterly ridgetop winds. Freezing level around 1000 m.FRIDAY: Mostly cloudy with flurries. Strong southerly ridgetop winds. Freezing level around 1000 m.SATURDAY: Mostly cloudy with flurries. Moderate southwesterly ridgetop winds. Freezing level around 1200 m.
Avalanche Summary
Numerous natural loose wet avalanches up to size 2 were reported on Tuesday.
Snowpack Summary
Rising freezing levels and daytime warming have created moist or wet snow surfaces on all but alpine, northerly aspects where 20 cm up to 50 cm of recent storm snow has been redistributed by strong winds. Weak layers buried around March 19th are roughly 40 cm below the surface (up to 100 cm in deeper snowpack areas). These weak layers include surface hoar on shaded aspects at high elevations and hard crust layers on solar aspects and below treeline.Near the bottom of the snowpack, weak and sugary facets are found in shallow, rocky snowpack areas. Storm slabs have stepped down to these facets and producing very large avalanches in northern parts of the region.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Wet
Aspects: North, North East, East, South East, South.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 12th, 2018 2:00PM