Avalanche Forecast
Issued: Apr 6th, 2018 4:37PM
The alpine rating is Wind Slabs and Cornices.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Moderate - Timing, track, or intensity of incoming weather system is uncertain
Weather Forecast
TONIGHT: Mostly clear. Ridge wind light to moderate, west. Alpine temperature near -10. Freezing level valley bottom.SATURDAY: Increasing cloud, snow beginning in the afternoon. Accumulation 5-15 cm. Ridge wind moderate to strong, southwest. Alpine temperature near -5. Freezing level 900 m.SUNDAY: Cloudy, flurries. Accumulation up to 5 cm. Ridge wind moderate, west. Alpine temperature near 0. Freezing level 1500 m.MONDAY: Mix of sun and cloud. Ridge wind moderate, west. Alpine temperature near 0. Freezing level 2000 m.
Avalanche Summary
On Friday both natural and easily skier-triggered wind slab releases up to size 1.5 were reported in the southern part of the region.Thursday in the Elkford area, recent small (size 1) loose/dry avalanches were reported on northerly aspects while loose/wet were observed on solar aspects. In the southeast corner of the region skier-triggered loose/dry avalanches were reported to be running far on a recently buried crust.Wednesday small loose wet point releases were reported from steep rocky solar aspects.On Tuesday, small avalanches were observed in the Alexander Creek area. On Monday, small natural avalanches were reported from the region, and ski cutting produced similar small avalanches on wind-loaded features. Also on Monday, explosives triggered one size 2 wind slab avalanche on an east aspect at 2300 m. This avalanche ran on a 60 cm deep crust layer.
Snowpack Summary
10-15 cm of snow sits above a variety of crusts on all but high north aspects. Northern parts of the region have less new snow than southern parts. Wind has formed hard slabs in lee features, and in some cases the snow may be poorly bonded to the crusts.Multiple crusts exist in the top metre of the snowpack. Some parts of the region may have a surface hoar layer roughly 60 cm deep on north aspects at treeline.A well settled midpack sits above sugary facets in many parts of the region, especially thin snowpack areas.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Cornices
Aspects: North, North East, East.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 7th, 2018 2:00PM