Avalanche Forecast
Avalanche Bulletin - Glacier National Park
Early season avalanches can be particularly nasty as rocks, deadfall, stumps are lurking just below the snow's surface. Even a small avalanche that pulls you over a cliff, into a terrain trap or crevasse would have high consequences!
Avalanche Problem 1: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Avoid thin, rocky or unsupported slopes.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
Avalanche Summary
Yesterday two natural wind slab avalanches were observed in the HWY corridor off Mt Mcdonald on steep terrain to size 1.5. No other natural or rider triggered avalanches have been reported recently.
Snowpack Summary
At TL in sheltered locations, we have approx 20-30cm of low-density snow overlying the Halloween crust. This crust sits on 50-70cm of rounds/mixed forms which cover the earlier October crusts and the snowpack is approx 90cm. The alpine was blown out by last week's strong Northerly winds, leaving behind a variety of challenging surface conditions.
Weather Forecast
Today we'll see a weak occluded front passing through Rogers Pass as a low-pressure system tries to battle its way onshore from the Pacific. The Freezing Level will rise to 1800m, we should see 5-10cm of new snow in the alpine and moderate winds from the SW. The next real precipitation isn't expected until next week.
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Last week's strong winds scoured the upper snowpack and or pressed the new snow into a unreactive wind slab. Watch for rising temperatures today and newly formed wind slabs this afternoon. A new mountain conditions update was also recently posted.