Avalanche Forecast
Issued: Feb 25th, 2014 8:46AM
The alpine rating is Persistent Slabs and Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Timing or intensity of solar radiation is uncertain on Wednesday
Weather Forecast
Overnight and Wednesday: Clear overnight with moderate Southerly winds and alpine temperatures near -15. Mostly sunny during the day with light South winds and no precipitation.Thursday: Sunny with moderate Northerly winds and temperatures of about -5 in the alpine.Friday: Mostly sunny with strong Northerly winds and cooler temperatures.
Avalanche Summary
Several small natural and rider triggered wind slabs were observed on Sunday. Loose snow sluffing was also reported on steep sheltered slopes. Forecast sunshine and warmer temperatures this week may be enough to make the mid February persistent weak layer become reactive.
Snowpack Summary
Outflow winds picked up late on Saturday and have likely resulted in reverse loading in exposed terrain. 35-90 cm of settled storm snow overlies a variety of old surfaces including weak facets, surface hoar (more predominant at tree line and below tree line elevations), a scoured crust, wind pressed snow, or any combination of these. Whumpfing, cracking, and reports from the field indicate a very poor bond between the new snow and these old surfaces. Recent snowpack tests give easy or moderate "pops or drops" shears on this persistent weakness and show potential for wide propagation. A lack of activity on this layer is likely because the overlying snow has not settled into a slab due to the recent cold temperatures.
Problems
Persistent Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 26th, 2014 2:00PM