Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Login
Archived

Avalanche Forecast

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

Suspect unstable snow anywhere the surface snow is heavy and altered by the wind.

Confidence

Moderate

Avalanche Summary

A few new small natural and human triggered wind slab and loose dry avalanches have been reported in the region.

Larger avalanches on more deeply buried persistent weak layers were reported last week during a warm spell, like this one in the Telkwa area last Friday. Persistent problems like this one will be slow to change and improve.

If you are out in the backcountry please consider filling out a Mountain Information Network report.

Snowpack Summary

Ongoing snowfall over recent days has accumulated around 40 cm of fresh snow that is being affected by recent southwest winds. This all sits on a crust from the warming event on January 25th. Some of this new snow has been blown into wind slabs that can be easily triggered on the crust.

The mid and lower snowpack continues to bond and stabilize while a number of buried weak layers remain a concern and have produced a number of large avalanches last week.

Weather Summary

Friday night

Flurries up to 5 cm, with higher amounts north of Hazelton. Ridge wind 30-40 km/h from the southwest. Temperature -4 °C.

Saturday

Flurries up to 5 cm. Ridge wind 20-30 km/h from the southwest. Temperature -3 °C.

Sunday

Clearing. Possible flurries. Ridge wind 40-60 km/h from the west and northwest. Temperature -2 °C.

Monday

5-10 cm with possible rain up to 900 m. Ridge wind 40-60 km/h from the west. Freezing level to 1100 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Wind slabs are most reactive during their formation.
  • Wind slabs may be poorly bonded to the underlying crust.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks or recent avalanches.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.

Avalanche Problems

Wind Slabs

New snow has been blown into wind slabs in lee and cross loaded features. Use caution in wind affected features and monitor for stiff snow, drum-like sounds and/or shooting cracks.

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

Elevations: Alpine, Treeline.

Likelihood: Likely - Very Likely

Expected Size: 1 - 2.5

Persistent Slabs

A number of buried weak layers remain possible to trigger. These layers appear to be most problematic in upper treeline and alpine elevations, in shallow, variable, rocky start zones.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3