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Archived

Avalanche Forecast

Mar 19th, 2022–Mar 22nd, 2022
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
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.

Below 2000 m a melt freeze crust of varying thickness will make ski quality variable.

At alpine and treeline windslabs remain possible to human triggering in steep unsupported terrain.

Weather Forecast

Sunday: Cloudy with sunny periods isolated flurries, amounting to 5 cm. Moderate gusting strong W winds. Alpine high -8. Freezing levels valley bottom.

Monday: Cloudy with isolated flurries, trace precip. Moderate W winds. Alpine high -6, low -10. FL 1400m.

Tuesday: Cloudy with sunny periods. Moderate SW winds. Alpine high -2, low -5. FL 1700m

Snowpack Summary

Wind slabs 20-60cm deep at alpine and treeline. Below 2000m is a melt freeze crust of varying thickness. This overlies old windslabs and the March 3 rain crust. Feb 15 crust down 70-120 cm exists up to 2000m. Lower snowpack is well settled 1F to P. HS 250-300 cm near the continental divide.

Avalanche Summary

Numerous natural loose wet avalanches to sz 1.5 were observed Sat from steep terrain and rocks at peak solar. Several natural windslab avalanches, sz 1 -2, were observed in alpine lees. Observed from a far a crown above Forum Lake, suspect wind slab avalanche sz 3 from last 24 hrs. Please report any observations to the Mountain Information Network

Confidence

Due to the number of field observations

Avalanche Problems

Wind Slabs

20-50cm windslabs in treeline and alpine lees. Several natural windslab avalanches, size 1-2, were observed Saturday on north and east alpine lees.

  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
  • Watch for pockets of windslab in steep alpine features.

Aspects: North, North East, East, South East, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2