Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible - Likely
- Size
- 1.5–2.5
Large wind slabs will be found in the alpine and upper treeline. These slabs will remain sensitive to rider traffic. Avoid wind loaded terrain.
Avalanche forecast
View on mapNorth Columbia
Dec 4 – 5, 2021Avalanche Canada
Archived · expired 5 years ago
Avalanche danger
Mon
Tue
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
Highlights
Wind slab hazard still remains in the alpine and upper treeline. Carefully assess the wind slab hazard as you gain elevation in search of better riding conditions.
Avalanche problems
Confidence
High -
Weather Forecast
Friday night: low of -15 at 1500m with light alpine winds. No precipitation expected.
Saturday: high temperature at 1500m -10. light to moderate winds from the Northwest. up to 15cm of new snow with the higher amounts expected for the Southwest part of the region.
Sunday: high of -10 at 1500m, moderate winds from the Northwest in the alpine. Some light flurries with little accumulation.
Monday: No new snow expected. High of -13 at 1500m. Light to Moderate Northwest winds in the alpine.
Avalanche Summary
On Wednesday the region saw a widespread natural avalanche cycle to size 3.5 on all aspects with some running full path. Wet slab avalanches were observed in the below treeline on all aspects up too size 2.5. Hard frozen debris will likely be found in the runout of most avalanche paths.
Snowpack Summary
Recent strong winds have formed wind slab in all exposed terrain in Alpine and upper treeline. A new crust has formed below 2000m with moist snow underneath.
The average snowpack depth at treeline is 250cm.
Terrain and Travel
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.