Avalanche Forecast
Issued: Mar 18th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
TRettie,
Avalanche Canada
Forecasted snowfall amounts vary greatly across the region. Treat hazard as considerable in areas that receive more than 20 cm overnight.
Summary
Confidence
Low - Uncertainty is due to the track & intensity of the incoming weather system.
Weather Forecast
Friday night: stormy with 5 to 15 cm of new snow for most of the region. Up to 50cm in the 5040 Peak area. Light to moderate southerly winds and a low of -2 at 1200 m.Â
Saturday: a mix of sun and cloud with flurries bringing up to 10cm of snow at higher elevations. Freezing levels rising to 1100m. Light to moderate southwest winds.Â
Sunday: mostly cloudy with moderate southerly wind. Freezing level around 800 m. 5 to 10cm of new snow expected.
Monday: mostly cloudy with 5 to 10cm of new snow expected and moderate southerly winds. Freezing levels rising to 1500 m.
Avalanche Summary
We suspect new wind slab could be rider triggerable on Saturday.
No avalanches have been observed over the past few days.
Snowpack Summary
New wind slab will likely form over night on northerly aspects. A widespread melt freeze crust can be found on or near the surface across the region. This crust is thickest at low elevations and on sun-exposed slopes, and may not exist on high elevation north aspects. The snowpack is considered strong and well-bonded below this crust. .Â
Below treeline, snowpack depths are below threshold for avalanches in many areas.
Terrain and Travel
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
- Be alert to conditions that change with elevation and wind exposure.
Problems
Wind Slabs
New wind slab will likely form overnight on northerly aspects at treeline and above.
Storm slab could be found on all aspects treeline and above in areas that receive more then 20 cm of storm snow. This is likely to occur in the 5040 Peak area.
Slab avalanches could be more sensitive to rider traffic where they have formed over a crust.
Aspects: North, North East, East, South East, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 19th, 2022 4:00PM
