Avalanche Forecast
Issued: Apr 8th, 2012 10:25AM
The alpine rating is Loose Wet, Cornices and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Good
Weather Forecast
Monday is the tail end of the beautiful weather pattern we've been in for the past few days. The upper flow switches from northerly to a more mild southerly on Tuesday which will push freezing levels above 3000 m. Monday: Freezing level starts near the surface, topping out around 2500m. A few clouds build into the region in the afternoon. The current forecast shows that Monday night is the last good overnight refreeze until next weekend. Tuesday: Temperatures should already be near 2000 m at dawn and are forecasted to continue to climb to 3000 m by lunch time. Cloud cover increases to 50% as winds Light southeast winds are forecast for at all elevations Tuesday. Temps remain high through the night. Wednesday: Freezing level stays around 3000 all day. Ridge top winds strong SE diminishing in speed at lower elevations.
Avalanche Summary
No avalanche activity reported Saturday or Sunday. On Friday in the Fernie area a skier triggered a size 1.5 avalanche with a 20 cm crown on an E facing slope at 2000 m Friday. Some loose snow activity on a SE facing slope was also reported, but, there is surprisingly little avalanche activity in the region currently.
Snowpack Summary
Mild temperatures in combination with the strong spring sun have helped to settle out the 20 cm from Wednesday's storm which came to rest on the April 4th melt/freeze crust. At this point last weeks storm snow has seen a lot of the sun & it has behaved quite well, producing very little in the way of avalanches. Recent storm snow has added up to 60-120 cm depending on the drainage. Our field team was out in the region Saturday; they were able to find the March 27th interface down around 90cm below the snow surface but test profiles did not produce any results on this layer. Large cornices loom over many lee slopes. Glide cracks are a concern, be sure to give them a wide berth as they are very sensitive and could fail at any moment.
Problems
Loose Wet
Aspects: North, North East, East, South East.
Elevations: All elevations.
Likelihood
Expected Size
Cornices
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood
Expected Size
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Apr 9th, 2012 9:00AM