Avalanche Forecast
Avalanche Bulletin - Little Yoho
Great spring like conditions exist right now with powder on polar aspects and crust on solar. The danger is Low/Low/Low in the morning and deteriorating with daytime warming. Get up early and enjoy the great conditions!
Avalanche Problem 1: Loose Wet
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.
- Avoid ice climbs exposed to steep rocky terrain on solar aspects during the middle of the day.
Avalanche Problem 2: Cornices
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Hot weather means cornice season, and this is the time when large mature cornices begin to fall off and the mountain sheds its snowpack. On ridges stay well away from cornices (they can reach back and get you), and avoid traveling under them.
Avalanche Summary
Wet loose avalanches up to size 2 were running by noon on Tuesday on sun exposed slopes. These were less active on Tuesday than the day before, but will be most active on steep, thin, rocky solar aspects.
Snowpack Summary
North aspect snow is soft, cold and well settled with few weak layers of concern. South and west aspects now have a suncrust on the surface that becomes moist by 11am. Currently we are moving from Low danger in the morning to Considerable danger in the afternoon on solar aspects - so get an early start.
Weather Forecast
Wednesday will start with a cold morning (overnight low of -10) but will warm up to reach +5 to +10 again in the afternoon with light south winds. Thursday and Friday look to be overcast with light snow (5 cm) and freezing levels staying below 2000m. Winds will remain generally light.
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The sun is strong right now and with this clear weather, it is destabilizing the snow on solar aspects in the afternoon. Generally these avalanches are running as loose wet and not stepping down to deeper layers, but the possibility remains.