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Avalanche Forecast

Mar 10th, 2015–Mar 11th, 2015
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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: Purcells.

Forecast light snow in the alpine is expected to continue to develop windslabs.

Confidence

Good

Weather Forecast

Cloud developing overnight with freezing levels dropping down to about 1200 metres. Light precipitation starting in the early morning combined with moderate to strong southwest winds. Freezing levels rising up to about 2100 metres during the day. Light precipitation overnight and Thursday morning resulting in 3-5 cm of new snow above about 1700 metres. Friday is expected to be very warm with clearing skies as the high pressure ridge re-builds.

Avalanche Summary

No new avalanches reported.

Snowpack Summary

Roughly 5-10 cm of recent snow adds to the variable amounts of dry facetted snow on top of the mid-February crust with associated buried surface hoar in sheltered areas, or, more recent melt-freeze crusts on sun-exposed slopes. The late-Jan crust/surface hoar layer can be found about a metre below the surface in deeper snowpack areas. The mid-January surface hoar, can be found below that. These layers have gained significant strength, and chances of triggering these weaknesses have decreased dramatically. 

Avalanche Problems

Wind Slabs

Changing wind directions continue to develop new windslabs in the alpine.
Avoid freshly wind loaded features.>Use caution in lee areas in the alpine. Recent wind loading has created wind slabs.>

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 3