Avalanche Forecast
Issued: Nov 11th, 2015 4:13PM
The alpine rating is Wind Slabs and Loose Dry.
, the treeline rating is , and the below treeline rating is Known problems includeA significant storm is forecast to hit the area on Friday. Pay attention to the rising avalanche danger
Summary
Weather Forecast
Flurries with light accumulations and freezing levels near valley bottom forecasted for Thursday. A significant storm is forecasted for Thursday night through Friday with accumulations of 30-40 cm of snow at treeline, high winds, and freezing levels rising to 1600 m. An avalanche cycle is expected on Friday.
Snowpack Summary
35-45 cm of unconsolidated snow exist at treeline elevations throughout the forecast area. A 5mm layer of surface hoar that was reported in some areas has been buried by several cm of new snow today (November 11 surface hoar). Some soft wind slabs exist at higher alpine elevations.
Avalanche Summary
Over the past five days slabs and loose snow avalanches (up to sixe 2.5) have been triggered and are running naturally from alpine features. Yesterday at Bow Summit a size 1.5 avalanche was remotely triggered on the ground, and on the Wapta a group remotely triggered a size 2 on Mt. Olive.
Confidence
Problems
Wind Slabs
Avalanches up to 50 cm deep are being triggered in many areas in high alpine, glaciated terrain. Watch out for windloaded features which should be avoided at this time as triggering is easy.
- Be careful with wind loaded pockets while approaching and climbing ice routes.
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood
Expected Size
Loose Dry
The entire snowpack is unconsolidated, and loose avalanches have been observed to have run through confined gully areas - this is something ice climbers should keep in mind as they consider any overhead hazards to their routes.
Aspects: North, North East, East, South East, South.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Nov 12th, 2015 4:00PM