Rain will change to snow Friday AM with 20 cm possible through the day. Dangerous avalanche conditions will continue until cold temperatures stabilize the snowpack.
Summary
Weather Forecast
Temperatures will remain warm overnight with up to 10mm of rain. Easterly winds begin Friday am and temperatures will fall. Rain will change to snow with 20 cm possible by Friday night. Cool temperatures and snow through the weekend with total storm accumulation of 35 cm possible.
Snowpack Summary
The snowpack is warm at all elevations with isothermal conditions on all but northerly alpine aspects. Rain overnight will continue to deteriorate the snowpack at treeline and below. Stability will return to the snowpack base as temperatures drop through the weekend however surface storm snow instabilities are likely.
Avalanche Summary
A significant avalanche cycle continues at all elevations, most observations have been on southerly aspects.
Confidence
Timing, track, or intensity of incoming weather system is uncertain on Friday
Problems
Wet Slabs
Wet slab avalanches will slow as temperatures cool and rain changes to snow through the day.
Minimize exposure to avalanche terrain during periods of heavy loading from new snow, wind, or rain.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Wet
Loose wet avalanches will slow as temperatures cool and rain changes to snow through the day.
Be very cautious with gully features.
Aspects: North, North East, East, South East, South.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: May 2nd, 2014 4:00PM
