Avalanche Forecast
Issued: Apr 4th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Cornices.
dsaly,
Avalanche Canada
Keep an eye on the wind and snow transport. Slabs may be especially touchy where they overlie a crust.
Summary
Confidence
Moderate - Uncertainty is due to the speed, direction, or duration of the wind and its effect on the snowpack.
Weather Forecast
Monday night: Increasing cloud and wind, flurries in the morning. South wind increasing to moderate overnight. Ridgetop low -10 C.
Tuesday: Unsettled and windy, up to 5 cm. Models suggest Haines Pass will receive up to 15 cm. Moderate to strong southwest wind. Ridgetop high -6 C.
Wednesday: Flurries, trace to 5 cm. Moderate to strong south wind. Ridgetop high of -4 C.
Thursday: Flurries, trace to 10 cm. Models suggest Haines Pass could get up 20 cm. Strong and gusty southeast wind. Ridgetop high -3 C.
Avalanche Summary
On Saturday, skiers remote triggered a size 2 wind slab from 10 m away on a north aspect. They also saw evidence of a natural wind slab avalanche cycle in the last 2-3 days, with avalanches to size 2 failing in immediate lee features and steep terrain.
Snowpack Summary
Wind has redistributed recent snow into pressed surfaces and wind slab. Northerly and higher elevation terrain holds 10-30 cm settled and wind affected snow over previously wind affected surfaces. A crust is found on all aspects to 1200 m and to ridgetop on solar slopes. The middle of the snowpack is reported to be strong and well settled. Take note, cornices are large and looming.
Terrain and Travel
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Wind slabs may be poorly bonded to the underlying crust.
- Pay attention to cornices and give them a wide berth when traveling on or below ridges.
Problems
Wind Slabs
Wind will continue to redistribute loose snow. Be cautious of wind slabs lurking in immediate lee features and cross-loaded gullies at treeline.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Cornices
Large cornices have been observed in the region. As winds increase these could become increasingly reactive. Limit your time on slopes with these hazards above them, especially when the wind is blowing.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 5th, 2022 4:00PM
