Avalanche Forecast
Issued: Mar 2nd, 2013 4:11PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs and Loose Wet.
snow safety,
Avalanche Canada
Additional load with a cold NE storm Sunday will keep the danger HIGH. Cold temperatures after the storm should tighten up the lower elevation instabilities. Avalanche Control on Sunshine Road and Mt. Whymper tomorrow! JBW
Summary
Weather Forecast
A cold upper trough will cut off the strong southwesterly sub tropical flow creating a winter north east storm overnight and into Sunday. The skies will clear and the temperatures drop in the wake of the cold front.
Snowpack Summary
Up to 50 cm of storm snow has created a new snow slab which is failing easily on the old snow surfaces in the alpine. At treeline and below, rising freezing levels and rain have created a moist to wet slab condition.
Avalanche Summary
Natural avalanches are running on all aspects and elevations up to size 3.5. Storm slabs from the upper start zones are pulling out additional moist slabs and wet avalanches in the lower tracks. Steep slopes in the valley bottoms are failing as wet loose avalanches.
Confidence
Problems
Storm Slabs
Another 20 cm overnight with strong winds will add to the avalanche danger. Avoid travel in avalanche terrain until the snow stabilizes with the cold front passage.
- Avoid all avalanche terrain during periods of heavy loading from new snow, wind, or rain.
- Avoid all avalanche terrain.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Wet
Below treeline and down into the valley bottoms the snow is moist and unstable. Loos wet avalanches and moist slabs are possible on all steep terrain
- Avoid all avalanche terrain during periods of heavy loading from new snow, wind, or rain.
- Stick to simple terrain and be aware of what is above you at all times.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 3rd, 2013 4:00PM
