Avalanche Forecast
Issued: Feb 2nd, 2014 8:46AM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Wind effect is extremely variable
Weather Forecast
Synopsis: A very strong ridge of high pressure continues to dominate the weather pattern with no end in sight.Monday: Sky: Mix Sun/Cloud; Freezing Level: Valley Bottom; Precip: Nil Wind: Light, NE, Mod NE at ridgetop.Tuesday: Sky: Mix Sun/Cloud; Freezing Level: Valley Bottom; Precip: Nil Wind: Light, NEWednesday: Sky: Mix Sun/Cloud; Freezing Level: Valley Bottom; Precip: Nil Wind: Light, NE, Mod NE at ridgetop.
Avalanche Summary
Explosive control work on a steep north facing slope in the alpine produced a size 2.5 avalanche in the central portion of the region Saturday. Sounds like the bombardier was able to hit the sweet spot where the snowpack went from thick to thin at the top of the start zone.
Snowpack Summary
The south of the region saw slightly more more precipitation in the last system. Near Kimberley up to 20cm of snow now sits on a variety of old surfaces, this amount is closer to 10cm further north in the Dogtooth range. The old surface can be found as large surface hoar (widespread in most sheltered and shaded areas and at all elevations), a sun crust (on open south facing slopes), facets (in colder areas or areas with a thinner snowpack), or a combination of any of the above. North winds are redistributing the new snow reverse loading lee features in the alpine and forming reactive pockets of windslab up to 40cm deep.The upper and mid-snowpack are generally supportive to a riders weight and well settled.In isolated areas where the snowpack is thinner or in steep rocky features a facet/crust weakness near the ground remains a concern. In most places the depth of this layer combined with the strength of the overlying slab makes triggering an avalanche unlikely. However, if you were unlucky enough to find a weak spot the consequence could be a large, destructive avalanche.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Feb 3rd, 2014 2:00PM