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Avalanche Forecast

Archived

Mar 29th, 2025–Mar 30th, 2025

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Lizard-Flathead, Flathead, Lizard.

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.

Problems

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.