Avalanche Forecast
Avalanche Bulletin - Glacier National Park
Winds are forecasted to spike today so might the avalanche activity. Avoid steep unsupported terrain features or where there are buried crusts.
Avalanche Problem 1: Storm Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Avoid convexities and unsupported features.
Avalanche Summary
No new avalanches observed in the HWY corridor or reported from the backcountry yesterday. 2 days ago there were several avalanches in the HWY corridor, mostly in the size 2-2.5 range out of very steep terrain. All initiating in the storm snow and most running to half fan on the run outs.
Snowpack Summary
~25cm of low density snow from the 25th with mod S winds forming soft slabs along lee of ridges. Storm snow landing on a facetted old snow surface making for a weak bond. Avoid exposure to the many large cornices. Windslabs buried under recent storm snow. Solar aspects have a crust buried 30-50cm that requires caution. PWL now buried 150-200cm.
Weather Forecast
Today we can expect 5+ cm of new snow with convective flurries, westerly winds 25km/h gusting to 50 km/h. Freezing level at valley bottom, with an alpine high of -11. Forecast is for a warm up on Thursday and Friday will bring the next significant storm, with 15-20 cm of new snow.
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Storm slabs will be most prevalent in the Alpine and areas at treeline where exposed to the wind. Previous wind slabs are now buried and slowly starting to heal. Cornice failures have tapered off, but it's still recommended to give them a wide berth.