Avalanche Forecast
Avalanche Bulletin - Glacier National Park
Watch for a building temperature inversion and changing surface snow conditions especially on solar aspects.
Avalanche Problem 1: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Use caution in lee areas. Recent wind loading have created wind slabs.
Avalanche Problem 2: Loose Dry
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Solar input and rising freezing levels are expected to result in loose dry slides on steeper solar aspects today. This problem will peak on Thursday and Friday with freezing levels reaching mountain top.
Travel and Terrain Advice
- Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet.
- Be increasingly cautious on sun exposed slopes.
Avalanche Summary
Recent natural size 3 slab E aspect, 2400m off the Dome ridge, estimate150m wide, 200cm deep ran 200m. Probably down to basal ice. 1 size 1 slab off a small convexity on Video Peak. No new avalanches were observed in the highway corridor yesterday.
Snowpack Summary
Last week's 50cm of storm snow is providing good skiing accept in wind affected areas. Novemeber 26-23 crusts are down 60-80cm and giving hard progressive collapse results and breaks around the lower more faceted crust. These test results may change with the forecast warming trend over the week.
Weather Forecast
Freezing levels will rise today along with strong solar input on southerly aspects. A strong inversion is moving in and will be the point of focus through Friday. Cloudy with sunny periods today and an alpine temp of -2C with light winds. Alpine temp up to +5C tomorrow and possibly 6C on Friday.
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Last week's storm snow has been redistributed by moderate winds at and above treeline. These slabs may become more reactive with solar input and rising freezing levels.