Avalanche Forecast
Issued: Apr 18th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
mconlan,
Avalanche Canada
Assess whether new slabs have formed before committing to steep and consequential terrain.
Summary
Confidence
Moderate - Forecast snowfall amounts are uncertain. Uncertainty is due to the limited number of field observations.
Weather Forecast
MONDAY NIGHT: Cloudy with snowfall, accumulation 5 to 10 cm, 20 km/h south wind, alpine temperature -3 C, freezing level 1800 m.
TUESDAY: Cloudy with snowfall, accumulation 5 to 10 cm, 30 to 40 km/h southwest wind, alpine temperature -7 C, freezing level 1500 m.
WEDNESDAY: Mostly clear skies with no precipitation, 10 km/h southwest wind, alpine temperature -3 C, freezing level 1800 m.
THURSDAY: Mostly cloudy with snowfall, accumulation 2 to 5 cm, 10 km/h southwest wind, alpine temperature -3 C, freezing level 1800 m.
Avalanche Summary
We did not receive any reports of avalanche observations in the past few days.
Please consider posting your observations to the Mountain Information Network to supplement our data stream and help fellow recreationists.
Snowpack Summary
Around 10 to 20 cm of snow is forecast to accumulate by Tuesday across the region. The snow will fall with southwest wind, which may form new wind slabs in lee terrain features at higher elevations. The snow will fall onto 10 to 20 cm of consolidated snow over a hard melt-freeze crust at higher elevations. Below the rain-snow line, rain will wet a consolidated snowpack.
The remainder of the snowpack is strong, consisting of hard snow and various melt-freeze crusts.
Terrain and Travel
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
- Wind slabs are most reactive during their formation.
- Watch for fresh storm slabs building throughout the day.
- Pay attention to cornices and give them a wide berth when traveling on or below ridges.
Problems
Wind Slabs
New snow and southwest wind are forecast for Monday night into Tuesday. The snow may form new wind slabs in lee terrain features. Also use caution if you find 15 cm or more in sheltered terrain, as storm slabs could form.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Apr 19th, 2022 4:00PM
