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Avalanche Forecast

Archived

Jan 31st, 2024–Feb 1st, 2024

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

Regions

Lizard.

We should see a gradual decrease in avalanche danger as cooling temperatures help to stabilize the snowpack.

Confidence

Moderate

Avalanche Summary

The natural avalanche cycle observed on the weekend and earlier in the week with the warming event has tapered. On Tuesday there were still a few natural wet loose avalanches to size 1.5 reported from steep alpine terrain.

Snowpack Summary

Rain and warm temperatures have created a moist or wet upper snowpack at all elevations. A weak surface crust may have formed overnight but will break down quickly throughout the day.

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

Wednesday Night

Mainly cloudy with clear breaks. Alpine wind 20-50 km/h from the south and southwest. Treeline temperature 2 °C, freeing level 2700 m.

Thursday

Mix of sun and cloud. Alpine wind 15 to 30 km/h from the south. Treeline temperature 2 °C, freezing level 2500 m.

Friday

Mostly cloudy with isolated wet snow flurries or rain. Alpine wind southwest 10 to 25 km/h. Treeline temperature 0 °C, freezing level 2000 m.

Saturday

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

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep in mind that wet avalanches can be destructive due to their high density.
  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Problems

Wet Slabs

Wet Slab avalanches are the release of a cohesive layer of snow (a slab) that is generally moist or wet when the flow of liquid water weakens the bond between the slab and the surface below (snow or ground). They often occur during prolonged warming events and/or rain-on-snow events. Wet Slabs can be very unpredictable and destructive.

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.