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Archived

Avalanche Forecast

Feb 28th, 2020–Feb 29th, 2020
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
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
3: Considerable
The avalanche danger rating in the alpine will be considerable
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
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Little Yoho.

Expect new windslab development overnight and Saturday. Otherwise - great skiing can be found in many locations!

Weather Forecast

Friday Night: Flurries (10-20 cm) with moderate to strong SSW winds. The higher amounts are for the Northern part of the region along the Divide.

Saturday/Sunday: Cooler temperatures with highs of -8C. Saturday night temperatures fall to -14, but climb to -11 C with lighter wind and a mix of sun and cloud forecasted for Sunday.

Snowpack Summary

Some wind effect and new wind slabs in lee areas of the alpine. 10-20 cm of recent snow over buried sun crusts on steep solar aspects. The Feb. 1 rain crust is down 20-50 cm and present below 1900 m. A dense snowpack with no significant weaknesses is present in most areas, but thin rocky areas have a faceted base.

Avalanche Summary

Isolated small thin wind slab in the immediate lees were reported today, otherwise no new avalanches were reported today.

Confidence

Intensity of incoming weather systems is uncertain

Avalanche Problems

Wind Slabs

With snow and SSW wind forecasted Friday night, new wind slabs will form in the lees of features.. These overlie the previously described thin wind slabs that have been reactive in isolated loations.

  • Pay attention to overhead hazards like cornices which could trigger slabs.
  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Likely

Expected Size: 1 - 2