Avalanche Forecast
Avalanche Bulletin - Glacier National Park
While wind loaded pockets remain the #1 concern, pay close attention the effects to the strong spring sun. Plan on avoiding steep solar terrain this afternoon.
Avalanche Problem 1: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
Avalanche Summary
Cool temps have limited the natural activity however, a sz 3 cornice release was observed which put debris all over the fan. Yesterday we received report of an accidently triggered avalanche in the Ravens area of the Asulkan Valley. This was a fresh windslab over suncrust in a mid slope cross loaded feature. It ran for 350m & injured the skier.
Snowpack Summary
Cool temps have prevented the surface crust below treeline from breaking down. Approximately 20cm of new snow in the past 48hrs has softened up the skiing at all elevations. Wind slabs exist above treeline and are reactive to skiers. Watch for a buried crust on steep solar aspects and isolated patches of surface hoar, both down 20-40cm.
Weather Forecast
Expect cloudy skies with sunny periods today. No significant precip is forecast but isolated convective flurries could produce localized snow squalls. It'll be a colder day today with alpine highs near -9 & freezing levels rising to 1100m. Ridge winds will be SW 20 gusting 45 km/hr. A pacific system will bring 20-30cm Mon-Tues along with warm temps
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Lingering wind slabs are present on most aspects in the alpine. These slabs are most easily triggered on convex, unsupported terrain. Wind slabs are likely to propagate where they overlie a buried curst on solar aspects and isolated surface hoar.