Loose, solar triggered avalanches are possible this afternoon on steep solar aspects. Minimize exposure to sun exposed slopes when solar radiation is strong.
Summary
Weather Forecast
A ridge of high pressure over the region gives one more day of sunny skies and cold temperatures. This AM strong ridge top winds are blowing from the N/E. Expect alpine temperatures around -18. An area of low pressure starts to move into the region tonight bringing snow. Flurries are forecast for Sunday, moderate snow is forecast for Monday.
Snowpack Summary
The
Jan 28/Feb 10 PWL down 1-1.4m under a cohesive slab, is becoming more difficult to trigger but has
high propagation propensity. Recently avy techs in the Bonney area had a whumph on this layer off the moraines and hard sudden planar results testing it at 2130m on a NE aspect. A surface sun crust has been found on steep solar aspects.
Avalanche Summary
We have observed solar triggered natural avalanche activity occurring from steep solar aspects, producing loose wet avalanches in the afternoon when the sun remains out. Numerous size 1.5-2.5 have been observed daily from steep southerly aspects along the highway corridor daily.
Confidence
Intensity of incoming weather systems is uncertain on Monday