Avalanche Forecast
Issued: Feb 2nd, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
lbaker,
Avalanche Canada
Watch for avalanche hazard increasing in the afternoon as new snow accumulates. Investigate how storm snow is bonding to the crust below it and use appropriate sluff management techniques in steep terrain.
Summary
Confidence
Avalanche Summary
On Wednesday, explosives control produced a few size 1 avalanches on new storm snow. Backcountry users should expect to see evidence of a small loose dry avalanche cycle in steep terrain.
Please continue to post your reports and photos to the Mountain Information Network, the information is very helpful to forecasters.
Snowpack Summary
Afternoon flurries will build upon 10-15 cm of storm snow overlying a melt-freeze crust. The crust varies in thickness from thick and supportive to thin and breakable. The middle and lower snowpack is strong and bonded.
Weather Summary
Thursday night
Isolated flurries overnight, 2-4 cm accumulation. Southwesterly ridgetop winds 40 to 60 km/h. Treeline temperatures -1 ˚C. Freezing levels climb to 1500 m.
Friday
Cloudy with flurries starting around noon bringing 5-10 mm of precipitation. Southerly ridgetop winds 50 to 70 km/h. Treeline temperatures -2 ˚C. Freezing levels fall to 1200 m.
Overnight storm increases in intensity. An additional 30-50 mm of precipitation is expected overnight. 40 to 70 km/h south wind.
SaturdayThe storm continues with cloudy skies and flurries, 25 mm precipitation. 40 km/h south ridgetop wind, treeline temperatures warm to -2 ˚C. Freezing levels 1300 m.
SundayCloudy skies with scattered flurries, 10 mm precipitation. 20 km/h west ridgetop wind, treeline temperatures warm to -2 ˚C. Freezing levels 1200 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for fresh storm slabs building throughout the day.
- Be especially cautious as you transition into wind affected terrain.
- Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
Problems
Storm Slabs
Hazard will increase in the afternoon as storm snow accumulates above a hard melt-freeze crust. Where winds have redistributed snow watch for an increase in slab properties and reactivity. Be careful with sluffing in steep terrain, especially above cliffs and terrain traps.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 3rd, 2023 4:00PM
