A 30 cm storm slab exists in the alpine and at treeline. This slab will become reactive quickly with even brief solar warming this afternoon.
Summary
Weather Forecast
Alpine temps will remain cool with freezing level up to 1200m, an alpine high of -6 deg with skies clearing in the afternoon. 3 cm of new snow is forecasted today with potential for more with isolated convective flurries. Ridge top winds will be westerly 20kph gusting 50 today and the relatively cool temps are expected to persist to the weekend.
Snowpack Summary
SW winds have created soft windslab on Alpine lee features & crossloads. Convective flurries have built a 30cm storm slab in the Alp & at TL which is reactive on a crust on specific terrain features. Feb 27th layer is down 70cm & reactive on solar slopes. Cornices are large, fragile and failing
Avalanche Summary
A 25cm storm slab has been catching riders off guard. There has been 4 reports of avalanches on this layer in the Connaught & Hermit areas. The largest was 20cm deep, 70m wide and ran 50m to a bench. The storm slab is poorly bonded to a crust and most reactive in unsupported terrain. Forecasters observed five sz 2's from steep terrain yesterday
Confidence