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Archived

Avalanche Forecast

Mar 16th, 2018–Mar 19th, 2018
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Waterton Lakes.

Snow is disappearing fast from lower elevations but overhead and alpine avalanche hazard still exists.

Weather Forecast

Light snow overnight Saturday through Sunday with daytime temperature staying below freezing in the townsite. Winds will remain light from the NE

Snowpack Summary

Warm temperatures and rain have started a melt freeze cycle in the eastern slope of Waterton. Snow has been disappearing fast at lower elevations and south facing aspects, but wind loaded gulleys and north facing slope in the alpine are still holding snow.

Avalanche Summary

Small loose wet avalanches off steep terrain as the sun comes out and temperatures rise throughout the day.

Confidence

Due to the number and quality of field observations

Avalanche Problems

Loose Wet

Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet.Pay attention to sluffing off cliffs and steep solar terrain, signs of a warming snowpack.

Aspects: North, North East, East.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 1.5

Deep Persistent Slabs

If triggered the loose wet sluffs may step down to deeper layers resulting in large avalanches.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 2 - 4