Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1–5
Be alert for wind slabs behind ridges and terrain breaks.
Bollettino valanghe
Vedi sulla mappaCariboos
Feb 5 – 6, 2012Avalanche Canada
Archiviato · scaduto 15 years ago
Pericolo valanghe
Tue
Wed
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
Problemi valanghivi
Cornices
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Likely
- Dimensione
- 1–7
Large cornices are looming over many slopes. They are weakest when it's warm and sunny. A falling chunk could trigger an avalanche on the slope below, potentially releasing a deep weak layer.
Loose Wet
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Likely
- Dimensione
- 1–4
Direct sun and warming can trigger loose avalanches, especially in steep south-facing terrain.
Confidence
-1 - -1
Weather Forecast
Monday-Wednesday: Dry weather. Freezing level dropping to valley floor at nights and rising to around 1000m during the day. Light winds.
Avalanche Summary
Numerous loose snow avalanches and a few slabs were triggered by warming and solar radiation on Friday. In some cases, icefall or cornice fall was the trigger. No avalanches were reported on Saturday.
Snowpack Summary
Very warm alpine temperatures melted the surface layers on Friday. In areas which had an overnight freeze, a sun crust now exists to ridge top on solar aspects. The mid-January facet layer down 80-150cm seems to be particularly touchy below 1500m where it is shallower and sits on a crust. Wind slabs and large fragile cornices exist in lee and cross-loaded terrain.Total snowpack depths are well above average or even at new record depths for this time of year.