Avalanche Forecast
Issued: Feb 4th, 2021 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Loose Dry.
mark herbison,
Increasing winds will keep the hazard elevated for Friday. Watch for wind slab at tree line and above as the strong winds redistribute the recent snow.
Summary
Weather Forecast
Friday will see a mix of sun and cloud with isolated flurries. Winds will increase again during the day up into the strong range (40-60km/hr) from the West and North West, tapering off by Friday night. Alpine temps will range from -10 to -15. Cool temps, cloud cover and light winds for the weekend.
Snowpack Summary
Moderate to strong Westerly winds have redistributed the recent 30-60cm of low density storm snow into wind slab in the alpine and exposed areas at tree line. The mid snowpack has a series of persistent weak layers that remain dormant. Height of snow at tree line is 150-220 cm.
Avalanche Summary
On Thursday explosive control on Mt. Bourgeau produced numerous sz 1-1.5 avalanches.
On Wednesday explosive control on Mt. Field, Mt. Stephen and Mt. Dennis on Wednesday produced numerous sz 2.0 avalanches, a few sz 2.5 and one sz 3.0.
A natural avalanche cycle occurred on Tuesday up to size 2.5. Natural avalanche activity has since tapered off.
Confidence
Problems
Wind Slabs
Increasing winds, up into the strong range (40-60km/hr) from the West to North West will redistribute the recent storm snow into wind slabs in the alpine and open areas at tree line.
- Use caution in lee areas. Recent wind loading has created wind slabs.
- Watch for shooting cracks or stiffer feeling snow. Avoid areas that appear wind loaded.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Dry
Up to 60 cm of storm snow has been sluffing easily in steep terrain. Avoid committing yourself to steep, confined terrain.
- Be aware of party members below you that may be exposed to your sluffs.
- Be careful of loose dry power sluffing in steep terrain.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Feb 5th, 2021 4:00PM
