Avalanche Forecast
Issued: Feb 4th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
Tim Haggarty,
The current storm looks to be bringing more of the promised wind than snow: continue to monitor slab development. While we have dropped the persistent slab as an avalanche problem, the Dec 2 FC/CR has not gone away: keep it in mind especially in KNP
Summary
Weather Forecast
The current storm is expected to bring 5 to 10 cm through Sunday morning. West winds in the moderate to strong range are expected in the alpine with temperatures reaching around -5C at treeline and -12C in the alpine Saturday afternoon. By midday Sunday, winds should diminish and clearing can be expected with some further warming.
Snowpack Summary
Moderate winds continue to redistribute the 10 to 30cm that has accumulated over the Jan 30 crust, surface hoar and wind effect. Hard slabs can be found in alpine. While slab development at treeline is only starting yet these are more likely to overlay a sun crust or surface hoar. Shallow snowpack areas remain weak and faceted.
Avalanche Summary
Both of the ski hills have reported working with stubborn hard slabs in the alpine over the last couple of days. A sz 1.5 skier accidental was reported yesterday in the alpine of one of the Healy Creek paths, and another, right at treeline in one of the "Simpson " road paths in KNP: sz 1.
Confidence
Intensity of incoming weather systems is uncertain on Saturday
Problems
Wind Slabs
As you approach treeline, expect to encounter slab development. Take the time to investigate what the recent snow is sitting on and how it is bonding.
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 5th, 2022 4:00PM
