Avalanche Forecast
Issued: Mar 5th, 2013 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
brian webster,
Avalanche Canada
A few more days of conservative terrain choices would be a good idea. This will allow the recent storm snow to bond to the older surfaces.
Summary
Weather Forecast
A rather benign weather pattern for the next few days will bring light winds to the alpine, no precipitation, and moderate diurnal fluctuations in temperatures (alpine highs of -10*, lows of -15*)
Snowpack Summary
Up to 60 cm of storm snow since Friday has settled to 30-40 cm. Cool temperatures have tightened the upper pack and promoted bonding within the storm snow and on the storm snow interface, however we still expect to see storm slabs that are reactive to skier triggering in steeper alpine terrain.
Avalanche Summary
Evidence of a wide-spread natural cycle up to size 3 (at treeline and above elevations) in the storm snow from previous 72 hours. Several avalanches (up to size 2.5) observed from past 36 hours along Highway 93 North and South (all in the alpine)
Confidence
Problems
Storm Slabs
60 cm of recent storm snow has created unstable storm snow conditions. The natural cycle is over and cooler temperatures have tightened up the upper pack, however we still expect to see touchy storm slab conditions over the next few days.
- Be cautious as you transition into wind affected terrain.
- Choose conservative lines and watch for clues of instability.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 6th, 2013 4:00PM
