Windy Day

Avalanche

jeffmckay8 · Feb 21, 2022 · Microwave-Sinclair

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Quick report

Weather
sunny, cold, windy
Ride Type
alpineSlopes
Riding Quality
amazing
Snow Conditions
powder
Avalanche Conditions
avalancheConditionSnow

An amazing day of skiing out near Paleo. Good ski penetration was found on most terrain, with soft unconsolidated snow. Appx. 15-20cm, with no slab properties felt. Some windslabs were seen on surrounding steep terrain. We skied a SE face, and it was consistent powder.

Weather

Wind Speed
windSpeedModerate
Blowing Snow
moderate
Sky Condition
clear
Wind Direction
NE
New Snow24 Hours
15
Storm Start Date
2022-02-20T08:00:00.000Z
Storm Snow Amount
15
Temperature Trend
steady

A cold and clear day. Wind swirling around a bit, transporting lots of snow off to Terrace, grrrrr.

Snowpack

Obs Type
summary
Ski Penetration
20
Foot Penetration
30
Site Elevation Band
alp
Surface Conditions
newSnow

Avalanche

Run Length
30
Slab Width
15
Trigger Type
natural
Wind Exposure
reverseLoadedSlope
Avalanche Size
1
Slab Thickness
10
Start Zone Aspect
E, NE, SE
Avalanche Character
windSlab
Number Of Avalanches
6-10
Avalanche Observation
12to24hrsAgo
Start Zone Elevation Band
alp
Avalanche Occurrence Datetime
2022-02-21T16:00:00

Lots of small wind slabs failing near ridge tops on east-ish facing terrain. Winds appeared to be reverse loading, blowing against cornices, and causing failures right beneath cornices or on steep alpine slopes. A few also observed on other aspects (W) and winds were swirling. No step-down or long runout, with most terminating in the start zones. We also saw one older cornice failure, which may have triggered a few other wind slabs. The cornice debris was buried partially, and may have been a week or two old.