Avalanche Forecast
Issued: Apr 9th, 2015 9:16AM
The alpine rating is Persistent Slabs and Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Due to the number and quality of field observations
Weather Forecast
Thursday: Sunny with some clouds appearing late in the day, freezing level rising to around 11300m. Winds moderate to strong from the S-SW. Friday: Light snow. The freezing level is near 1200 m and winds are strong from the south. Saturday: Cloudy with flurries. The freezing level is forecast to 1000 m and winds should be moderate from the SW.
Avalanche Summary
Loose wet avalanches to size 2 have been reported from steep sun-exposed slopes. Some of these triggered slabs up to size 2.5, possibly releasing on the March 25th surface crust/ surface hoar layer. Observers near the Ningunsaw Pass (northern part of the region) have reported significant activity on the March 25th interface. For the past few days there have been reports of natural, skier-triggered, and remotely triggered avalanches up to size 2.5.
Snowpack Summary
You may still find dry powder on higher north aspects, but any sun exposed slope will likely have been through a melt-freeze cycle. Recent winds have scoured windward slopes and loaded lee features. A crust with surface hoar buried on March 25th, down around 50 cm, has been identified as a potential problem in parts of the forecast region, but its sensitively and distribution are largely unknown. At the base of the snowpack, especially in areas of shallow snow, weak facets may be found. Cornices are now large and potentially fragile, and solar aspects are becoming active in the late afternoons. Spring is on the way !
Problems
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Apr 10th, 2015 2:00PM