Avalanche Forecast
Issued: Mar 19th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
Lynnea Baker,
Below 2000 m a melt freeze crust of varying thickness will make ski quality variable.
At alpine and treeline windslabs remain possible to human triggering in steep unsupported terrain.
Summary
Weather Forecast
Sunday: Cloudy with sunny periods isolated flurries, amounting to 5 cm. Moderate gusting strong W winds. Alpine high -8. Freezing levels valley bottom.
Monday: Cloudy with isolated flurries, trace precip. Moderate W winds. Alpine high -6, low -10. FL 1400m.
Tuesday: Cloudy with sunny periods. Moderate SW winds. Alpine high -2, low -5. FL 1700m
Snowpack Summary
Wind slabs 20-60cm deep at alpine and treeline. Below 2000m is a melt freeze crust of varying thickness. This overlies old windslabs and the March 3 rain crust. Feb 15 crust down 70-120 cm exists up to 2000m. Lower snowpack is well settled 1F to P. HS 250-300 cm near the continental divide.
Avalanche Summary
Numerous natural loose wet avalanches to sz 1.5 were observed Sat from steep terrain and rocks at peak solar. Several natural windslab avalanches, sz 1 -2, were observed in alpine lees. Observed from a far a crown above Forum Lake, suspect wind slab avalanche sz 3 from last 24 hrs. Please report any observations to the Mountain Information Network
Confidence
Due to the number of field observations
Problems
Wind Slabs
20-50cm windslabs in treeline and alpine lees. Several natural windslab avalanches, size 1-2, were observed Saturday on north and east alpine lees.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Watch for pockets of windslab in steep alpine features.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 22nd, 2022 4:00PM
