Avalanche Forecast
Issued: Mar 6th, 2016 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs, Persistent Slabs and Cornices.
aaron beardmore,
Avalanche Canada
Stay clear of shallow areas and trigger points. Give cornices a wide berth.
Summary
Weather Forecast
A cooling trend is expected to start tomorrow along with tapering snowfall amounts. The freezing level is expected to be around the surface. Wind is Westerly and tapering to the light/moderate range towards the end of Monday.
Snowpack Summary
Storm snow amounts to approx 15cm in the last 36 hours. Moist surface snow below 1600m and wet snow below 1300m on Friday. Expect to find small wind slabs forming in lee areas in the alpine. Generally, the snowpack is well consolidated with few weaknesses.
Avalanche Summary
No avalanches observed or reported in Yoho today.
Confidence
Problems
Wind Slabs
West winds have formed small wind slabs in predictable areas on the leeward sides of ridges. Pay close attention to how the snow surface feels, ski test on small rolls, and look for clues like cracking.
Aspects: North, North East, East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
The persistent weak layers from January and February are bonding well and have a low likelihood of triggering in most of the forecast area. The snowpack overall is quite strong, but check for yourself and look for surface hoar in the upper meter.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Cornices
Large cornice failure was observed Mar 4 on Mt. Ogden. Recent swing in temperature is making large cornices highly suspect.
Aspects: North, North East, East, South East, South.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 7th, 2016 4:00PM
