Issued: Mar 26th, 2023 2:45PM
The alpine rating is Wind Slabs., the treeline rating is , and the below treeline rating is Known problems include
Continued winds from varying directions through Monday morning, along with forecasted precipitation, will form wind slabs on multiple aspects.
Watch for newly formed wind slabs as you transition into wind affected terrain.
A size 2 slab avalanche was reported at Mont Albert. 2 people were reportedly involved, with no burials or injuries.
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2 to 5 cm of new snow redistributed by moderate to strong winds varying from the SW, S and SE aspects. We suspect that the melt freeze crust of variable thickness on the solar aspects and below 600m has limited the effects of these winds on the snowpack surface. Under this thin melt freeze crust, 10 to 20 cm of slightly denser snow rests on the March 18 crust. The middle of the snowpack is well consolidated, and of increasing density, interspersed with several refreezing crusts from the last few weeks.
Forecast for the Chic-Chocs ridges and summits.
Synopsis: A low pressure system south of the peninsula will bring variable amounts of precipitation and variable winds for the next few days.
Sunday evening and night: Cloudy. 3 to 5 cm of snow. Winds from 25 to 35 km/h from the east- southeast. Min. -7C.
Monday: Cloudy. 4 to 7 cm of snow. Winds from 5 to 10 km/h from the northeast to southeast. Max. -5C.
Tuesday: Mostly cloudy. Trace of snow. Winds from 10 to 15 km/h from the northeast. Max. -6C.
Wednesday: Cloudy. 3 to 5 cm of snow. Winds from 5 to 10 km/h from the southwest. Max. -5C.
For more details, see the Chic-Chocs alpine forecast.
Terrain and Travel Advice
- Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
- Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
- Highmark or enter your line well below ridge crests to avoid wind loaded pillows.
The continuous precipitation and variable winds of the last 24 hours and overnight Sunday, have created small but reactive wind slabs on multiple aspects. The depth of it will be greater in the alpine, but still expect slab to form at treeline.
Aspects: North, North East, East, South West, West, North West.
Elevations: Alpine, Treeline.
Valid until: Mar 27th, 2023 3:00PM