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Archived

Avalanche Forecast

Feb 5th, 2023–Feb 6th, 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
3: Considerable
The avalanche danger rating below treeline will be considerable
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
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

Regions: Babine, East Stikine, Hudson Bay, Kispiox, Microwave-Sinclair, Northwest Inland, Telkwa.

Updated on Monday at 6:25 AM: Forecast snowfall amounts for Monday have increased. New snow and wind will create dangerous conditions, especially around wind-loaded slopes.

Confidence

Low

Avalanche Summary

On Friday a natural avalanche cycle up to size 3 took place in the south west corner of the forecast region. These avalanches failed on the late January crust.

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

Snowpack Summary

Ongoing snowfall and southwest winds have accumulated around 40 cm of storm snow that is being blown into wind slabs. This all sits on a crust from the warming event on January 25th. New snow likely will not bond well to this crust.

The mid and lower snowpack continues to bond and stabilize. A few concerning weak layers can still be found in the top meter of the snowpack including a surface hoar layer from early January and a crust from late December.

Weather Summary

Sunday

Flurries bringing trace amounts of new snow. Strong southwest winds and temperatures at 1500m around -1.

Monday

Increasing cloud throughout the day with 10 to 25 cm of new snow expected. Strong southwest winds and freezing levels rising to 1700m.

Tuesday

Mostly cloudy with flurries bringing up to 5cm of new snow. Light southerly winds and freezing levels falling to valley bottom.

Wednesday

A mix of sun and cloud with no new snow expected. Light to moderate southwest winds and a high of -6 at 1500m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for changing conditions today, storm slabs may become increasingly reactive.
  • Dial back your terrain choices if you are seeing more than 20 cm of new snow.
  • 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

Storm Slabs

New snow and ongoing southwest winds are forming reactive storm slabs throughout the day on Monday.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1.5 - 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