Avalanche Forecast Sea to Sky

Date Issued: Valid Until:

Avalanche Canada swerner, Avalanche Canada

Avalanche Forecast

Thu Feb. 7th ยท 4:09PM

Alpine

Danger Ratings Moderate

Treeline

Danger Ratings Low

Below Treeline

Danger Ratings Low
Wind Slabs Wind Slabs

Alpine

Danger Ratings Moderate

Treeline

Danger Ratings Low

Below Treeline

Danger Ratings Low

Alpine

Danger Ratings Low

Treeline

Danger Ratings Low

Below Treeline

Danger Ratings Low
Stiff wind slabs may continue to be reactive to human triggers at upper elevations.

Confidence

High -

Weather Forecast

THURSDAY NIGHT: 5 cm of new snow. Alpine temperatures near -10 and ridgetop winds light from the northeast.FRIDAY: Cloudy with snow amounts 5-7 cm. Alpine temperatures near -12 and ridgetop winds moderate from the northeast.SATURDAY: A mix of sun and cloud. Alpine temperatures near -8 and ridgetop winds moderate from the northeast. SUNDAY: Sunny with alpine temperatures near -12. Ridgetop winds mostly light from the northeast with strong gusts.

Avalanche Summary

On Wednesday, few small pockets of wind slab were easily triggered by the weight of a skier up to size 2 in the alpine.

Snowpack Summary

Alpine terrain is heavily wind affected to varying degrees on all aspects. The 40-50 cm of new snow from last weekend has been redistributed initially by strong southwesterly winds and now northerly outflow winds forming reactive pockets of wind slab. This sits on a crust on all aspects except north and possibly a mixture of weak feathery surface hoar or sugary facets in isolated sheltered terrain at treeline and below which hasn't shown much reactivity.The remainder of the snowpack is generally well-settled.

Problems

Wind Slabs

Wind Slabs

Shifting winds has formed stiff pockets of wind slab predominantly on southerly aspects. Loose dry sluffing of the new snow will likely occur from steeper terrain features.

Be careful with wind loaded pockets, especially near ridge crests and roll-overs.Be cautious as you transition into wind affected terrain.Watch for signs of instability such as whumpfing, or cracking.

Aspects: South East, South, South West.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2