Avalanche Forecast
Issued: Mar 18th, 2013 4:13PM
The alpine rating is Storm Slabs and Loose Dry.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Weather Forecast
Tuesday will be sun, freezing level to 1100m and likely higher with the sun's energy, and light SW treeline winds. Wednesday will have a warm front bringing small pulse of snow and potentially rain low elevations, freezing level 1700m and increasing SW winds. Thursday freezing level will drop, flurries, and light to moderate West winds.Â
Snowpack Summary
Surface soft slabs are forming mainly at exposed treeline locations and above yet are spotty. Saturday's strong North winds reverse loaded many slopes and now moderate Westerlies continue to move the snow. 90cm of snow fell since Wednesday. At treeline, soft slabs rest on a suncrust 80 cm deep in south facing terrain. Midpack is otherwise strong.
Avalanche Summary
Field patrol Parkers ridge N and S sides had no cracking or whumphing however the surface slab is evolving and spotty. No new naturals noted. Sunday's patrol a few size 2.5 storm slab avalanches ran on large planar alpine slopes. They initiated in lower start zones at 2500m. Numerous loose solar sluffs to size 2 noted mainly SW-NW aspects.
Confidence
Timing or intensity of solar radiation is uncertain on Tuesday
Problems
Storm Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Dry
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Mar 19th, 2013 4:00PM