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Avalanche Forecast

Archived

Feb 1st, 2024–Feb 2nd, 2024

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
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.

Regions

Lizard-Flathead, Flathead, Lizard.

Avalanche danger may increase through the day as surface crusts break down with afternoon warming.

Confidence

Moderate

Avalanche Summary

There are no new avalanches to report over the past few days.

Snowpack Summary

A weak surface crust has likely formed overnight over a moist or wet upper snowpack This crust may break down throughout the day as the temperature warms.

The middle of the snowpack is generally well bonded.

Near the bottom of the snowpack, there are a series of crusts and facets that are more prominent in shallow areas.

Weather Summary

Thursday Night

Cloudy with clear periods. Alpine wind 15 to 30 km/h from the south. Treeline temperature 1 °C, freezing level 2300 m.

Friday

Mostly cloudy. Alpine wind southwest 10 to 25 km/h. Treeline temperature 0 °C, freezing level 2000 m.

Saturday

Mostly cloudy with scattered flurries, accumulation 5-10 cm. Alpine wind northeast 20 to 40 km/h. Treeline temperature -2 °C, freezing level 1500 m.

Sunday

Mostly cloudy. Alpine wind southwest 10 to 20 km/h. Treeline temperature -4 °C, freezing level 1000 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.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • As surface loses cohesion due to melting, loose wet avalanches become common in steeper terrain.

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.