Issued: Feb 10th, 2024 4:00PM
The alpine rating is Storm Slabs., the treeline rating is , and the below treeline rating is Known problems include
Start on small slopes, and assess the bond of the new snow to the old surface.
Buried weak, feathery crystals may produce thin avalanches across entire features.
No new avalanches have been reported in this region.
We expect that with the incoming snow, human-triggered avalanches will be possible, especially where the new snow falls on preserved surface hoar.
If you do go into the backcountry, please consider submitting a MIN report.
By the end of the day on Sunday, 5 to 10 cm of new snow will have buried 10-20 mm surface hoar in the alpine and at treeline.
Above 1800 m, this surface hoar formed on top of 10 - 20 cm of faceting snow over a supportive crust that exists to mountain tops.
Below 1800 m, the new snow will probably sit right over the crust.
Where snow still existed below treeline, it was isothermal or refrozen. Even with some new snow at lower elevations, travel will remain challenging.
Mostly cloudy. 2-4 cm of snow expected to near valley bottom. Light southwest ridgetop wind. Treeline low around -4 °C.
Cloudy. 3-6 cm of snow expected to near valley bottom. Light southwest ridgetop wind. Freezing level rising to 1250 m through the day. Treeline temperature around -3 °C.
Sunny. 2-5 cm of snow expected overnight to near valley bottom. Light north ridgetop wind. Treeline high around -4 °C.
Mostly sunny. No new snow expected. Light northeast ridgetop wind. Treeline temperature around -8 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Closely monitor how the new snow is bonding to the old surface.
- Be aware of the potential for larger than expected storm slabs due to the presence of buried surface hoar.
- When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
Valid until: Feb 11th, 2024 4:00PM