Issued: Feb 2nd, 2024 4:00PM
The alpine rating is Wind Slabs., the treeline rating is , and the below treeline rating is Known problems include
The incoming snow will fall on a crust at all aspects and elevations and may bond poorly. Watch for new reactive windslabs forming on this crust. We are expecting a reverse loading pattern, forming wind slabs in unusual places.
Numerous avalanches were observed from last week's warming including wet loose, persistent slab, and deep persistent slab avalanches to size 2.5.
Up to 20 - 40 cm of snow forecasted for Saturday and Sunday will fall on a surface crust all aspects and elevations. Below this the snowpack is moist to ground treeline and below. This will slowly refreeze with cooler temperatures this week. The Dec 23rd and basal crusts are currently less of a concern due to the effect of significant warming last week and anticipated refreeze. Significantly less snow in the eastern areas of the park. Snowpack depths between 30 - 150 cm.
Rain turning to snow through the day as freezing levels lower to valley bottom, totaling 5 - 15 cm. Moderate to strong NE winds, alpine high -2°C.
15 - 25 cm of snow overnight bringing the total to 20 - 40 cm by Sun morning. Moderate to strong NE winds, alpine high -6°C.
Clearing with winds switching to light, westerly. Alpine high -4°C.
For more info see: Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for signs of slab formation throughout the day.
- Wind slabs may be poorly bonded to the underlying crust.
Shifting moderate to strong winds may build windslabs on all aspects. However, the primary wind direction is forecasted to be northeasterly throughout the storm. Watch out for reverse loading with this storm.
Aspects: All aspects.
Elevations: All elevations.
Valid until: Feb 5th, 2024 4:00PM