Avalanche Forecast

Issued: Apr 11th, 2024 4:00PM

The alpine rating is low, the treeline rating is low, and the below treeline rating is low. Known problems include Loose Wet and Persistent Slabs.

LG, Avalanche Canada

Waterton Lakes, Waterton.

A big warm-up is on the way for the weekend. Afternoon temps are forecast to rise close to +20 in the valley. During this period, avoid all avalanche terrain when temps rise in the afternoons. Start early and finish early, avalanche hazard reflects peak daytime warming.

Summary

Confidence

No Rating

Avalanche Summary

Natural windslabs to size 1.5 observed in the alpine and upper treeline and natural wet loose on solar slopes to size 1 observed this week.

Snowpack Summary

Alpine - Recent SW winds have formed thin stubborn windslabs in lee features. Fetches are scoured to rocks and old crusts. Feb 03 crust/facets may still exist at high elevations and are down 100-120 cms

Tree Line - Wind affected snow at this elevation has been settling with warm temps. This overlies a well-settled lower snowpack.

Below Treeline - Moist faceted snow to ground with a new surface crust forming overnight. Most solar aspects are now below threshold for avalanches

Weather Summary

Fri

An alpine high of +5Â°C with broken skies. Winds moderate SW

Sat

Mostly clear skies with an alpine high of +10Â°C. Light SW winds

Sun

Clear with an alpine high of +12Â°C. Light SW winds, little overnight refreeze expected.

For more info: Mountain Weather Forecast.

Terrain and Travel Advice

Minimize exposure to sun-exposed slopes when the solar radiation is strong.

Problems

Loose Wet

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Likely

Expected Size

1 - 2.5

Persistent Slabs

With warm temps this weekend this layer may become triggerable again.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely

Expected Size

2 - 3

Valid until: Apr 14th, 2024 4:00PM