Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible - Likely
- Dimensione
- 1–2
A wind event on Wednesday has created wind slabs in the alpine and down into tree line.
Bollettino valanghe
Vedi sulla mappaJasper
Dec 15 – 16, 2023Avalanche Canada
Archiviato · scaduto 3 years ago
Pericolo valanghe
Sun
Mon
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
In sintesi
The wind is forecast to increase through Friday. Watch for new wind-slabs and spin drift avalanches if ice climbing or skiing.
Problemi valanghivi
Deep Persistent Slabs
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1–2.5
The snow pack is very weak at the bottom. Natural activity has not been observed yet. Keep this on your radar as triggering remains possible with the shallow nature of the overall snowpack.
Confidence
High
Avalanche Summary
A few small wind slabs reported at ridge top at Marmot Basin over the past couple of days. Widespread spin drifts were noted off steep rocky terrain due to the strong winds on Wednesday.
Snowpack Summary
Trace amounts of snow fell on Thursday. The snowpack is 40-60cm deep and is weak and facetted. A surface hoar layer is down 15-20cm below 2300m. Previous strong winds have stripped exposed alpine and tree-line terrain and created wind-slabs in cross-loaded and lee features.
Weather Summary
The Mountain Weather Forecast is available at Avalanche Canada https://avalanche.ca/weather/forecast
Friday
Mainly cloudy with isolated flurries.
Precipitation: Trace.
Alpine temperature: High -6 °C.
Ridge wind southwest: 20 km/h.
Saturday
Mainly cloudy with isolated flurries.
Precipitation: Trace.
Alpine temperature: Low -7 °C, High -5 °C.
Ridge wind west: 20-30 km/h.
Freezing level: 1500m
Terrain and Travel Advice
- Avoid areas where the snow feels stiff and/or slabby.
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.