Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Likely
- Taille
- 1–2
Recent wind loading has produced new touchy wind slabs on lee and cross loaded features in sheltered areas.
Bulletin d’avalanche
Voir sur la carteJasper
Dec 11 – 12, 2014Parks Canada
Archivé · expiré 12 years ago
Danger d’avalanche
Thu
Fri
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
Points saillants
Pineapple express continues to bring warm and windy weather with snow fall occurring at treeline and alpine elevations only.
Problèmes avalancheux
Persistent Slabs
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–2
Persistent slab mainly around treeline is showing some signs of consolidation with less extensive whumphing observed on yesterdays field trip.
Loose Wet
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–2
Mild temperatures and rain have increased the likelihood of loose wet slides at lower elevations.
Weather Forecast
Remaining relatively mild into Thursday followed by a cooling trend into the weekend. Snowfall is expected at treeline elevations and above and will be accompanied by moderate to strong south westerly winds.
Snowpack Summary
Touchy wind slabs are forming in lee and cross loaded terrain features in the alpine and treeline. Mid-pack is gaining strength with recent mild temperatures. Bonding with the November crusts near the bottom of the snowpack appears to be improving. Whumphing at treeline elevations is less dramatic and more localized than the previous week.
Avalanche Summary
Limited observations in the alpine and treeline today due to the poor visibility. Size 2 avalanche had occurred in the last 24 hours at a below treeline location in the Maligne Lake area.
Confidence
Intensity of incoming weather systems is uncertain on Thursday