Avalanche Forecast Sea to Sky

Tuesday 5th February 2019

Avalanche Danger Ratings Tue 5th Feb 3:58PM Danger Ratings Alpine: Moderate Danger Ratings Treeline: Moderate Danger Ratings Below Treeline: Low Wind Slabs Wind Slabs

Avalanche Canada Forecaster: swerner

Date Issued:

Valid Until:

Wind slabs have formed on a variety of aspects due to shifting winds. Natural avalanche activity has tapered off but human triggered avalanches remain possible.

Confidence

High - The weather pattern is stable

Weather Forecast

The arctic ridge will continue to bring cold, outflow winds and dry weather to the coast tomorrow. Thursday will see a slight change when the low slides south bringing some precipitation. Wednesday: Sunny with some cloudy periods. Treeline temperatures near -8 with light ridgetop winds from the North.Thursday: Cloudy with sunny periods. Treeline temperatures near -6 with light ridgetop winds from the North.Friday: A mix of sun and cloud with isolated flurries. Treeline temperatures near -5 with light ridgetop winds from the northeast.

Avalanche Summary

On Monday, numerous wind slabs were easily triggered by the weight of a person up to size 1.5. With continued outflow winds and cold air natural avalanche activity will taper off but human triggered wind slabs remain possible through Wednesday.

Snowpack Summary

40-50 cm of new snow from last weekend has been redistributed by strong southwesterly winds initially and now northerly winds. 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. The remainder of the snowpack is generally well-settled.

Wind Slabs Wind Slabs

Likelihood

Possible

Expected Size

1 - 2

Expect to find wind slabs on a variety of aspects as winds shift from predominantly the southwest to the North.

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: All aspects.

Elevations: Alpine, Treeline.

More
Offline, Anywhere Members can email a forecast to themselves, meaning it's available offline Join