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Archived

Avalanche Forecast

Apr 17th, 2025–Apr 18th, 2025
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

When it's warm both day and night, loose avalanches are becoming more likely.

Make observations and continually assess conditions as you travel.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported on Wednesday.

Past evidence of wet loose avalanches (size 1 to 2) and old slabs are still visible, such as this one from Sutton Peak area.

NOTE: Observations are currently very limited in this region.

Thanks for sharing to the Mountain Information Network if you are going into the backcountry.

Snowpack Summary

No overnight recovery and continued high freezing levels on Thursday transformed the top 25 cm of snow into moist or wet surfaces.

The snowpack is generally well-settled and strong.

Lower elevations are melting out rapidly.

Weather Summary

Thursday Night

Clear. 10 to 20 km/h north ridgetop wind. Treeline temperature 8° C. Freezing level 3500 m.

Friday

Sunny with increasing cloudiness by midday. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 4 °C. Freezing level lowering to 2000 m.

Saturday

Cloudy with up to 5 cm of new snow. 30 to 40 km/h west ridgetop wind. Treeline temperature 0 °C. Freezing level lowering to 1500 m.

Sunday

Cloudy with up to 5 cm of new snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1200 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Avalanche danger will increase as the surface crust breaks down.