Avalanche Forecast

Issued: Mar 19th, 2020 4:20PM

The alpine rating is low, the treeline rating is low, and the below treeline rating is low. Known problems include Wind Slabs.

Parks Canada Mark Herbison, Parks Canada

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Be mindful of prolonged solar input. It can suddenly increase the sensitivity of the wind slab and/or cause cornices to fail.

Summary

Weather Forecast

Friday will be mainly sunny with cloudy periods and a small chance of flurries. Temps will range from -16 to 0 as the freezing level rises to 1400m. Ridge top winds will be light from the west. Much of the same for Saturday and Sunday.

Snowpack Summary

5-10cm of snow accumulation over the last few days. Widespread wind effect in the alpine from recent multidirectional winds. Sun crust on steep solar aspects. The deep snowpack of Little Yoho is generally strong with few weaknesses.

Avalanche Summary

Several solar triggered small loose avalanches observed Wednesday and Thursday. Otherwise, no new avalanches observed or reported.

Our observations are very limited and we appreciate your reports to the MIN.

Confidence

Problems

Wind Slabs

An icon showing Wind Slabs

Recent snow and variable wind directions have developed wind slabs in lee areas on a variety of aspects. Though these are hard to trigger remain cautious of them if you're pushing out into more committing terrain.

  • Variable winds may create pockets of wind slab in some unexpected locations.

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Unlikely

Expected Size

1 - 2

Valid until: Mar 20th, 2020 4:00PM