The avalanche danger is variable and can range from Low to High. Travelling early in the day is recommended, as conditions can change rapidly in short periods of time due to daytime warming. Pay careful attention to the integrity of surface crusts formed overnight and rising air temperatures during the day. Dry slab avalanche danger may also exist during spring snow storms. More Spring Conditions details.
Freezing overnight temperatures decrease this danger in the morning, it increases with daytime heating, sun and rain. Most widespread during the late afternoon on solar facing slopes. Sluffs from rocks can trigger large slides once the snow is wet.
Cornice failures are more likely with warm alpine temperatures.
The deep instability is well bridged by a solid mid-pack; however, it could be triggered by a cornice failure. This problem will transition to wet slabs as the snowpack warms this spring.
Deep persistent slabs are best managed by:
Cornices are best managed by:
Cool, unsettled conditions will dominate through the weekend with isolated convective storms possible on Sunday. Freezing levels are expected to hover around 1700 m overnight resulting in poor recovery on Sunday morning.
Winter conditions exist in the high alpine on Northerly slopes with up to 20 cm of loose new snow sitting over a well consolidated upper snowpack. Spring conditions exist on all other aspects and elevations with a melt freeze crust that is dependent on overnight freezing conditions. The snowpack is moist to wet snow to ground below this crust..
Avalanche activity will increase after warm nights and/or with thermal inputs such as rain, solar radiation and daytime warming. The avalanche danger will be lowest after cold nights and strong crust formation and will increase into the afternoon and evening before sunset. Likely trigger spots are rocks, cliffy terrain and shallow snowpack areas.