Avalanche Forecast
Regions: Glacier.
Weather Forecast
Thursday and Friday should be mostly dry but we may see a few flurries. Expect a mix of sun and cloud, alpine temps around -10, and moderate westerly winds. A weak storm is expected to arrive later on Friday, bringing increasing cloud and flurries. 9cm of snow are expected on Sat with freezing levels to 1500m.
Snowpack Summary
Temps have cooled off. At 1300m, a skiff of snow overlies a 3cm thick crust which should stay intact today. Above 1800m over 30cm of dry snow overlies a crust. 30cm of wet snow is buried and insulated down 60-100cm. Snowpack tests indicate that these layers may be triggerable by light loads, and if triggered are capable of propagating widely.
Avalanche Summary
No new natural avalanches were observed in Glacier National Park yesterday. Ski cuts produced small sluffs in the new snow on steep slopes at treeline. Wind slabs on lee features in the alpine were reported to be reactive to skier traffic, producing size 1 avalanches.
Confidence
Freezing levels are uncertain
Avalanche Problems
Wind Slabs
Aspects: All aspects.
Elevations: Alpine.
Likelihood: Possible - Likely
Expected Size: 1 - 2
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Possible - Likely
Expected Size: 1 - 3
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 2 - 3