High winds overnight has likely added to the slab problem, causing the hazard rating in the alpine to be considerable. Up to 16mm of precipitation for Saturday will also bump up the alpine hazard then. Otherwise, spring conditions continue.
Summary
Weather Forecast
The South Columbia's will be dry due to a ridge of high pressure, while the North will be wetter as a low moves through. Rogers Pass is on the boundary, so cloud and a chance of convective precipitation is expected. More unsettled weather is forecasted for the weekend, starting on Friday with the bulk of the rain (up to 16 mm) arriving Saturday.
Snowpack Summary
Variable springtime conditions: a 10-15cm thick crust on solar aspects and lower elevations overlies near isothermal snowpack which firms up overnight, and looses strength during the warmth of the day. In the alpine, a mix of hard and soft slab persists, with dry snow on polar aspects. Lots of variability in snow depth across terrain.
Avalanche Summary
The number of avalanche observations has dropped off, in part due to fewer people in the backcountry to report. Cornice failures remain the biggest concern for triggering larger slab avalanches, which are mostly failing on the April 3 PWL (sun crust-surface hoar combo), down 40-80cm. Cloud today will reduce the likelihood of moist avalanches.
Confidence
Timing, track, or intensity of incoming weather system is uncertain on Saturday