Avalanche Forecast
Issued: Jan 14th, 2021 3:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Cornices.
jmacpherson,
Avalanche Canada
Caution with the wind slabs and lee loaded slopes. Although we did not get a lot of new snow from this storm, The intense wind transport has created an assortment of new problems. Winds slabs and loaded features. Approach these areas cautiously and watch for over head hazards.
Summary
Confidence
Weather Forecast
Back to a High pressure system cooler temps today in the field high around -7°C, Wind were calm today to 2300m but still am moderate W - NW wind right at ridge top. No new snow in the forecast and winds expected to increase for Friday as the warmer air moves back in.
Avalanche Summary
No new avalanches observed today just more evidence of the storm cycle. We did see one slide that had good propagation starting in a steep feature just below a cliff band up to size 3. No evidence of any of the slides steeping down to the Nov. layer.
One newer cornice failure from mt. Buller
Snowpack Summary
Widespread windslabs were observed in alpine terrain and also in open areas at treeline that are failing down 30-40cm at the recent storm snow interface. The slab varies from Hard slab to soft slabs. The midpack is generally well settled over November crust that is not producing much in results in the test pits.
Terrain and Travel
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
- Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
- Avoid areas where the snow feels stiff and/or slabby.
Problems
Wind Slabs
Windslabs are developing following the recent storm and strong winds.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Cornices
Cornices have been growing and are prone to failure post storm
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Jan 15th, 2021 3:00PM
