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Archived

Avalanche Forecast

Mar 29th, 2025–Mar 30th, 2025
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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

Regions: Flathead, Lizard, Lizard-Flathead.

Surface conditions and recent precipitation amounts are variable. Verify conditions as you gain elevation, and back off steep slopes if you find moist surface snow.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported. Looking forward, wet loose avalanches are likely with even short periods of sun and rising freezing levels.

Large destructive avalanches were widespread throughout the warm-up, involving persistent weak layers.

Read the Forecaster Blog for an opportunity to reflect on this week's widespread avalanche activity.

Snowpack Summary

Recent new snow overlies a melt-freeze crust that is more supportive as you gain elevation. Surface crust may break down with fluctuating freezing levels and even short windows of sun during the day.

Below this, the upper snowpack has been slow to refreeze and may remain moist in some areas.

The mid and lower snowpack is well settled.

Weather Summary

Saturday Night

Cloudy. Isolated flurries, 3 to 5 cm. 10 km/h east ridgetop wind. Treeline temperature -6 °C.

Sunday

Mix of sun and cloud. Isolated flurries, 1 cm. 5 to 10 km/h southeast ridgetop wind. Treeline temperature -2 °C. Freezing level 1900 m.

Monday

Cloudy, isolated flurries 1 to 2 cm. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1700 m.

Tuesday

Cloudy, flurries 4 to 6 cm. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche danger will increase as the surface crust breaks down.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.

Avalanche Problems

Loose Wet

Recent new snow has accumulated at upper elevations over a melt-freeze crust and will likely release on steep slopes with even short periods of sun. Watch out for moist surfaces and back off steep slopes where the crust is breaking down.

Aspects: East, South East, South, South West, West.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2