Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible - Likely
- Größe
- 1–4
Old wind slabs continue to be a concern, and new wind slabs are expected to build with the next pulse of moisture.
Lawinenlagebericht
Auf der Karte ansehenCariboos
Feb 2 – 3, 2013Avalanche Canada
Archiviert · abgelaufen 14 years ago
Lawinengefahr
Mon
Tue
Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
2 · Mässig
Kernpunkte
Lawinenprobleme
Persistent Slabs
NNEESESSWWNW- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible
- Größe
- 1–5
Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. Both are reported to be patchy and variable in distribution. Most likely triggered on steep convex rolls at treeline or below.
Confidence
Fair - Due to variable snowpack conditions on Sunday
Weather Forecast
Overnight and Sunday: Cloudy with light Westerly winds overnight becoming strong Westerly in the afternoon. No precipitation overnight, 5-10 cms Sunday afternoon. Freezing level dropping to valley bottom overnight and up to about 1000 metres during the day.Monday: Alpine temperatures -6.0 with gusty West winds and light flurries.Tuesday: Winds shifting to South as the next pulse of moisture brings 10-15 cms of snow to elevations above 1000 metres.
Avalanche Summary
There was one natural slab size 3.0 that was reported from the North of the region on Friday. Loose snow sluffing to size 1.0 from steep terrain.
Snowpack Summary
The storm snow has settled into a dense slab that can be triggered by skiers or sledders that is propagating up to size 2.0 avalanches. There has been a lot of wind transport and wind slab formation in the alpine. Professionals are finding the early January surface hoar layer to be well preserved in more locations below 2000 metres than had been suspected.