Avalanche Forecast
Issued: Feb 2nd, 2013 8:55AM
The alpine rating is Wind Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Good
Weather Forecast
Sunday: The ridge will start to weaken, allowing the next frontal system to move in. Skies will generally be cloudy and no significant precipitation is expected. Ridgetop winds moderate from the West. Alpine temperatures -3.0 and freezing levels around 1300 m. Monday: Back to overcast, grey skies with ridgetop winds blowing light from the SW. Alpine temperatures -4.0 and freezing levels at 1300 m. Tuesday: The next frontal system moves onto the coast. Light snowfall amounts, accompanied by moderate ridgetop winds from the South. Alpine temperatures near -4.0 and freezing levels hovering around 1500 m. Â
Avalanche Summary
No natural avalanche activity has been reported.
Snowpack Summary
The recent snow seems to be settling and gaining strength although wind slabs may be found on lee slopes (N-SW) behind ridges and ribs and may be touchy to rider triggers. Down 10-30 cm sits a persistent interface comprising of crusts, facets and surface hoar crystals. Recently, this layer has been touchy in sheltered areas at treeline and below (where the surface hoar had a chance to form). Tests done on this layer have produced moderate-sudden planar and resistant planar results and should remain on your radar. Down deeper sits another surface hoar layer (40-80 cm) which seems to be gaining strength with very little reactivity on it.Near the base of the snowpack, a crust/facet layer exists, which is now unlikely to be triggered, except perhaps by heavy triggers in unsupported, shallow, rocky terrain where more faceting has taken place.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 3rd, 2013 2:00PM