A very light freeze is forecasted for Monday night, followed by a very warm day on Tuesday. Pay attention to how fast the snow is warming up.
Summary
Weather Forecast
Only a light freeze is expected tonight followed by a very warm sunny day on Tuesday. Freezing levels may rise as high as 3000 m. Slightly cooler temperatures with some scattered showers are forecasted for Wednesday.
Snowpack Summary
Supportive crust on solar aspects in morning which are deteriorating by early afternoon. High elevation east and north still have dry snow. Mid and lower pack is well settled with no significant shears.
Avalanche Summary
Loose snow avalanches up to size 1.5 on solar aspects in afternoon.
Confidence
Problems
Loose Wet
Expect solar triggered avalanche activity on steep solar aspects in the afternoon. Start early and be off steep solar aspects by midday.
- Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet.
Aspects: North, North East, East, South East, South.
Elevations: All elevations.
Likelihood
Expected Size
Cornices
Cornice failures have been big enough to trigger the deep basal facets. This scenario will be exacerbated by high freezing level and intense solar radiation on Tuesday and Wednesday.
- Cornices become weak with daytime heating, so travel early on exposed slopes.
- Extra caution needed around cornices with current conditions.
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 21st, 2015 4:00PM
