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Archived

Avalanche Forecast

Feb 3rd, 2023–Feb 4th, 2023
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
4: High
The avalanche danger rating at treeline will be high
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: North Shore, Sasquatch, Sky Pilot, South Coast, Tetrahedron.

630 am update: As storm snow continues to accumulate throughout the day watch for storm slabs becoming increasingly reactive. Dial back your terrain choices if you are seeing more than 30 cm of new snow.

Confidence

High

Avalanche Summary

No significant avalanches have been reported in the last few days however backcountry users should expect to see evidence of a natural avalanche cycle from within the storm when they are in the backcountry this weekend.

Please continue to post your reports and photos to the Mountain Information Network, the information is very helpful to forecasters.

Snowpack Summary

By Saturday morning +30 cm of storm snow overlies a melt-freeze crust. The crust varies in thickness from thick and supportive to thin and breakable. The middle and lower snowpack is strong and bonded.

Weather Summary

Friday night

Flurries bring 35 - 40 mm of precipitation to upslope areas of the north shore. Southwesterly ridgetop winds 60 to 80 km/h. Treeline temperatures -2 ËšC. Freezing levels fall from 1800 m to 1000 m.

Saturday

The storm continues with cloudy skies and flurries, 20 - 25 mm precipitation. Southerly ridgetop winds 40 km/h. Treeline temperatures warm to -1 ËšC. Freezing levels 1300 m.

Sunday

Mainly cloudy with scattered flurries, 15 - 20 mm precipitation. Strong southerly ridgetop winds ease to light in the afternoon. Treeline temperatures warm to -1 ËšC. Freezing levels 1200 m.

Monday

Cloudy skies with scattered flurries, 20 - 30 mm precipitation. Extreme southwesterly ridgetop winds ease to moderate in the afternoon. Treeline temperatures warm to 0 ËšC. Freezing levels 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for signs of slab formation throughout the day.
  • Storm snow and wind is forming touchy slabs. Use caution in lee areas in the alpine and treeline.
  • Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.

Avalanche Problems

Storm Slabs

+30 cm of storm snow and extreme southwest ridgetop winds are building touchy storm slabs above a hard melt-freeze crust. Closely monitor how new snow is bonding to the underlying crust. Be especially cautious where winds have redistributed snow into deep pockets in lees, watch for an increase in slab properties and reactivity.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Very Likely

Expected Size: 1 - 2