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Archived

Avalanche Forecast

Apr 24th, 2022–Apr 25th, 2022
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: South Coast.

Be aware of heightened avalanche conditions in treeline and alpine terrain where new snow may form wind slabs.

Confidence

Moderate - Forecast precipitation (either snow or rain) amounts are uncertain.

Weather Forecast

SUNDAY NIGHT: Cloudy with scattered flurries brining 5-15 cm of snow above 1300 m, 20-40 km/h wind from the south, treeline temperatures around +2 C.

MONDAY: Unsettled weather with clouds and scattered flurries bringing 5-10 cm of snow above 1000 m, 20-40 km/h wind from the south, treeline temperatures drop to -1 C.

TUESDAY: Mostly cloudy, isolated flurries with trace amounts of snow above 800 m, 20 km/h wind from the southwest, treeline temperatures around -2 C.

WEDNESDAY: Mostly cloudy, isolated flurries with trace amounts of snow above 800 m, 20 km/h wind from the south, treeline temperatures around -2 C.

Avalanche Summary

A few small wet loose avalanches (size 1) were observed on Saturday. The most notable recent avalanche was a size 2 wind slab on Friday that caught a skier in the Sky Pilot area. It was triggered by a small wet loose avalanche on a northerly aspect in the alpine (see MIN report). Looking ahead to Monday, the main concern will be avalanches in the new snow.

Snowpack Summary

By Monday afternoon there could be 10 to 20 cm of new snow above 1000 m, possibly forming new wind slabs in steep terrain. This will bury some older 20 to 30 cm thick wind slabs in alpine terrain, and moist or crusty layers at treeline and below. The lower snowpack is strong under the current cool weather, but large looming cornices remain a concern this time of year.

Terrain and Travel

  • Fresh wind slabs will likely form throughout the day, diligently watch for changing conditions.
  • Dial back your terrain choices if you are seeing more than 20 cm of new snow.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Avalanche Problems

Wind Slabs

Reactive slabs may form in steep alpine and treeline slope as new snow accumulates throughout the day on Monday.

Aspects: North, North East, East, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2