Avalanche Forecast
Avalanche Bulletin - Glacier National Park
Best to get an early start before temperatures rise and the sun starts to deteriorate the upper snowpack. Avoid steep south and west facing terrain this afternoon.
Avalanche Problem 1: Loose Wet
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Daytime warming will weaken surface layers.
- Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.
Avalanche Problem 2: Storm Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Storm slabs are possible on North and East aspects in the Alpine and exposed areas of treeline. These slabs will be most susceptible to triggering in steep unsupported terrain, near ridge crests where wind loaded.
Travel and Terrain Advice
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Use caution in lee areas in the alpine and treeline. Storm snow is forming slabs.
Avalanche Summary
Yesterday we observed 2 avalanches in the HWY corridor. 1 loose moist in Gunners Slide path and 1 slab avalanche in Pioneer, both size 2. Also a report of a size 2 storm slab skier controlled in Cheops North # 4. Several glide cracks are opening up and are on the verge of failing, it's best to give these hazards a wide berth.
Snowpack Summary
Warm temps yesterday and a clear night will leave us with a mod refreeze this am. Expect typical spring conditions (melt freeze) on all aspects and elevations except North and East in the Alpine and upper treeline, where there are still winter storm slabs lurking in steep exposed areas. April 7th Cr is now down 50-70cm and still a concern.
Weather Forecast
Finally a spring day! Weather should remain mostly clear today, FL will reach 1800m, but the solar effect will be felt much higher on solar aspects. Winds will remain light from the North and no precipitation. Friday afternoon we should see a change with 18mm of precipitation expected by late Saturday afternoon with strong westerlies.
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Loose wet avalanches can be expected as daytime warming and solar radiation pushes freezing levels upwards of 1800m. Expect surface snow layers to be moist and reactive this afternoon.