Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–4
New wind slabs have developed in the alpine and at treeline.
Avalanche forecast
View on mapKootenay Boundary
Apr 11 – 12, 2013Avalanche Canada
Archived · expired 13 years ago
Avalanche danger
Sat
Sun
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
Highlights
Due to a lack of information sources at this time of year, this forecast is based primarily on weather data. If you have been traveling in the backcountry recently, send us your observations. Email us at [email protected]
Avalanche problems
Loose Wet
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–4
Loose wet snow slides may release naturally from steep terrain at treeline and below. Wet slides in motion may gain a lot of mass as they scour isothermal snowpacks down to the ground.
Confidence
Fair - Due to limited field observations for the entire period
Weather Forecast
Friday: Mainly overcast with some sunny breaks early in the day. Clouds increasing in the afternoon with light precipitation possible. Freezing level 1000m and strong southwest winds.Saturday: Light to moderate precipitation possible with the passage of a cold front. Freezing level 1400m. Winds moderate from the west.Sunday: A cold and unstable airmass will bring a mixed bag of weather conditions. Cool temperatures, mainly overcast with some sunny breaks and possible snow showers.
Avalanche Summary
No new avalanches reported. Expect loose wet snow releases from steep terrain at treeline and below. Pockets of wind slab may be triggered by skiers or riders at higher elevations.
Snowpack Summary
40-60cm of new snow has fallen at 1800m elevation and above in last 4 days. This new snow sits on a crust at upper elevations. The snowpack continues to be moist or wet below this crust. Recent moderate to strong winds have created wind slabs in alpine leeward slopes. At lower elevations the snowpack is wet and isothermic.