Weather Forecast
Westerly flow, light to moderate amounts expected today and moderate amounts into Wednesday with associated moderate to strong south west winds.
Snowpack Summary
10 to 20cm over the Feb 3 sun crust on steep solar aspect. Temperature crust down ~20cm below 1400m. Profile on Mt Fidelity, 2080m, SE aspect, 33deg. 227cm snow depth. Easy to moderate resistant planar test results down 12 and 20 and moderate to hard sudden planar results down 45 and 57cm. Wind effect in upper snowpack tree line and above.
Avalanche Summary
Yesterday there were 2 natural, size 2.0, slab avalanches east of the Rogers Pass summit and 1 natural , size 2.5 avalanche west of the summit.
Confidence
Intensity of incoming weather systems is uncertain on Wednesday
Problems
Wind Slabs
Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.