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Avalanche Forecast

Archived

Apr 14th, 2024–Apr 15th, 2024

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

Regions

Purcells, Dogtooth, East Purcell.

The freezing level is forecast to drop Monday, yet the sun will still be out. Thin wet loose avalanches are the main concern on steep slopes facing the sun.

Confidence

Moderate

Avalanche Summary

Avalanche activity on Saturday and Sunday has been reported as numerous wet loose size 1-2 on slopes facing the sun.

Snowpack Summary

Expect surfaces to melt and weaken as the freezing level remains elevated on Monday. This will be isolated to sun-exposed slopes.

Weak layers deeper in the snowpack have shown signs of strengthening and are no longer a concern.

Weather Summary

Sunday Night

Mostly clear. 10-20 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 2500 m.

Monday

Mix of sun and cloud. 15-30 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

Tuesday

Mainly cloudy with 3-8 cm of snow. 20-30 km/h northwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1500 m.

Wednesday

Mix of sun and cloud. 10-25 km/h northeast ridgetop wind. Treeline temperature -3 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Minimize exposure to sun-exposed slopes when the solar radiation is strong.
  • Minimize your exposure time below cornices.
  • Watch for wind-loaded pockets especially around ridgecrest and in extreme 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.