Avalanche Forecast
Issued: Dec 4th, 2024 4:00PM
The alpine rating is
, the treeline rating is , and the below treeline rating isThe calm before the storm. Light rain may soften the snow surface, but the early-season snowpack remains stable and well-settled.
Summary
Confidence
Moderate
Avalanche Summary
No new avalanches have been reported recently. However, warming signs of instability, such as pinwheels and tree bombs, were observed earlier this week.
If you are going out in the backcountry, please consider filling out a Mountain Information Network (MIN) report.
Snowpack Summary
A melt-freeze crust has likely formed at the snow surface with overnight cooling. Rising temperature will start to melt the snow surface, as the day progresses, especially on steep sun-exposed slopes.
At upper and mid-elevations, the snowpack is moist to ground.
Snow depths vary across the region. Currently, near Mt. Washington, 135 cm is reported at 1100 m, and 250 cm at 1500 m.
Weather Summary
Wednesday Night
Partly cloudy. 20 to 30 km/h south ridgetop wind. Treeline temperature +4°C. Freezing level 2500 m.
Thursday
Cloudy with light rain. 5 mm. 30 to 40 km/h south ridgetop wind. Treeline temperature +4°C. Freezing level 2500 m.
Friday
Cloudy with heavy rain. 10 to 20 mm. 60 to 80 km/h south ridgetop wind. Treeline temperature +6°C. Freezing level 3000 m.
Saturday
Cloudy with heavy rain. 30 to 50 mm. 40 to 60 km/h south ridgetop wind. Treeline temperature +2°C. Freezing level 2500 m lowering to 1000 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.
Valid until: Dec 5th, 2024 4:00PM