Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 1–3
Moderate to strong Westerly winds continue to form wind slabs below lee ridgelines and terrain features through Sunday night.
Avalanche forecast
View on mapJasper
Mar 10 – 11, 2013Parks Canada
Archived · expired 14 years ago
Avalanche danger
Tue
Wed
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
Highlights
Avalanche problems
Loose Dry
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible - Likely
- Size
- 1–3
If the sun peaks out, loose avalanches with significant mass may occur. They are initiating out of steep West or South facing high elevation rocks or gullies.
Storm Slabs
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–3
The storm slabs remain soft where the wind has not firmed them up. Soft slab conditions also exist on gully sidewalls and some large alpine slopes.
Weather Forecast
Monday will be mostly clouds and moderate Northwest winds with only light snow flurries. A system will begin to enter the area from the South by Tuesday afternoon and may bring some significant snowfall by Wednesday afternoon. Temperatures will warm during the storm and be accompanied by moderate to strong Southwesterly winds.
Snowpack Summary
Wind slabs are developing below alpine lee ridge lines with steady moderate to strong Westerly winds. In sheltered areas, the recent storm snow has settled and bonded well. Expect a suncrust on southerly alpine and treeline aspects.
Avalanche Summary
One new size 2 slab on steep non- skiable rock slabs was seen on an easterly aspect. Of note were two previous size 3 avalanches on the same range that must have occurred earlier in the week directly following the storm. Saturday's heli bombing had good results on the settled pockets of storm slabs above the Maligne Road on the Medicine Slabs.
Confidence
Intensity of incoming weather systems is uncertain on Wednesday