Avalanche Forecast
Issued: Feb 4th, 2012 8:13AM
The alpine rating is Loose Wet, Wind Slabs and Deep Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Freezing levels are uncertain
Weather Forecast
High pressure ridge still dominating forecast region. Warm temps will continue, light winds are forecast with no new snow for the next few days.
Avalanche Summary
Numerous loose wet avalanches up to size 1.5 from steep solar aspects. Extensive snowballing in steeper terrain. Also, a few older slabs on E aspects at 3000m up to size 2 on Whistling Rock Ridge in steep (45deg) unsupported terrain. Likely caused by cornice collapses in the past 72hrs.
Snowpack Summary
Snowpack continues to settle with warm temps. Melt freeze crust on solar aspects up to 2900m that was breaking down and becoming moist by 11am. Widespreasd surface hoar growth up to 6mm on all aspects except steep solar. Suspect this will become a concern once snow arrives. HS on the French Glacier and on the Robertson Glacier was highly variable from 200cm to 40cm to bare ice in some places.
Problems
Loose Wet
Aspects: North, North East, East.
Elevations: All elevations.
Likelihood
Expected Size
Wind Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 5th, 2012 3:00AM