Avalanche Forecast
Avalanche Bulletin - Glacier National Park
Watch for surface layer instability and increasing avalanche danger as the day progresses.
Avalanche Problem 1: Storm Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Watch for whumpfing, hollow sounds, and shooting cracks.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
Avalanche Problem 2: Loose Wet
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Little if any crust recovery last night. Look for daytime warming to increase the potential for loose wet slides at lower elevations today. Make the decision to be finished early.
Travel and Terrain Advice
- Use extra caution on solar slopes or if the snow is moist or wet.
- Use extra caution on slopes if the snow is moist or wet.
Avalanche Summary
New size 2 wet loose avalanche in MacDonald Gulley 3 this morning. Yesterday one new size 2 avalanche recorded in the west end of the highway corridor off of steep south facing terrain.
Snowpack Summary
Yesterday's moist afternoon snow surface is now being insulated by 10cm of storm snow at 1900m. There was likely little overnight recovery of surface crust overnight. Dry snow still exists on shaded aspects at high elevations. Cornices and wind loaded pockets lurk above treeline. The April 7th crust is now down 50-70cm and still a concern.
Weather Forecast
West winds moderate gusting to strong will bring in another 5-10cm at higher elevations over the day. Alpine highs of -4C and freezing levels up to 1600m this afternoon. Sunny with cloudy periods and a warming trend to start the new week. Look for a change to more spring like snowpack conditions.
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Thin fresh storm slabs should be forming this morning over the old snow surface. Watch for their reactivity early in your tour and continue to monitor through the day.