Avalanche Forecast
Issued: Apr 13th, 2013 10:02AM
The alpine rating is Wind Slabs and Cornices.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Good
Weather Forecast
Sunday: Expect mixed skies, with a chance of isolated flurries. Alpine temperatures should reach -5 with freezing levels around 1400m under light southeasterly winds.Monday/Tuesday: Expect a clearing trend with scattered clouds, alpine temperatures reaching -3 and light easterly winds turning northeasterly.
Avalanche Summary
The recent storm snow has been reactive to rider triggering and explosive testing up to size 2.0. These avalanches are failing predominantly in wind loaded features on north through northeast aspects..
Snowpack Summary
Up to 15cm of new snow has fallen recently. This has settled rapidly into small reactive soft slabs due to strong greenhouse effect. The interface with this new snow is predominantly crusts (sun, wind and/or meltfreeze crusts) and where the crusts are smooth the bond is poor. Last Wednesday's storm deposited about 50cm of snow and was accompanied by moderate to strong south/southwest winds. Dense windslabs are now buried, but may still be reactive to large triggers in lee and cross-loaded alpine features. Up to 85cm below the surface you will likely find a melt-freeze crust from previous sunny weather. At the same interface, you may find spotty surface hoar on high north facing terrain. Large natural activity and remote triggers from earlier in the week suggest the surface hoar may continue to be reactive, especially with the weight of the new snow.Cornices are huge and have fresh tabs from the recent storm snow.
Problems
Wind Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Cornices
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 14th, 2013 2:00PM