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Archived

Avalanche Forecast

Feb 23rd, 2019–Feb 24th, 2019
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Glacier.

The snowpack is generally stable. Watch for solar triggered surface slides on steep South facing terrain if prolonged sun occurs today.

Weather Forecast

The forecast calls for cloudy with sunny periods and a trace of precipitation. An alpine high temp of -13C is expected for today. Sunny with cloudy periods, light winds and -15C is the forecast for the next few days.

Snowpack Summary

A dusting of new snow fell overnight. 15cm of settled snow resides on old wind slabs in the alpine. In sheltered areas the recent snow is covering surface hoar and facets. A crust on steep solar aspects makes for difficult traveling conditions, both uphill and down. The mid and lower snowpack is well settled and strong. A dusting of new snow .

Avalanche Summary

No new avalanches observed in the last 24hrs. Thursday three size 1.5-2.0 natural solar triggered avalanches observed in S facing paths in the highway corridor E of Rogers Pass. A size 3 likely cornice triggered slide occurred in the past week off the E face of the S ridge of Mt Bonney. This was a deep slab release on an unsupported feature.

Confidence

Due to the number of field observations

Avalanche Problems

Wind Slabs

Backcountry travelers may find pockets of wind slab in the alpine and open areas at tree line. Even a small wind slab can have big consequences in certain terrain features (steep, rocky, exposed terrain, etc).
Be careful with wind loaded pockets while approaching ridge lines.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely

Expected Size: 1 - 2