Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - Likely
- Taille
- 1–3
Wind slabs in the alpine and exposed treeline features have the potential for wide propagations across connected features.
Bulletin d’avalanche
Voir sur la carteJasper
Mar 5 – 6, 2021
Archivé · expiré 6 years ago
Danger d’avalanche
Sat
Sun
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
3 · Marqué
Points saillants
The warm temperatures and strong solar effect will continue to weaken the snowpack.
A Special Avalanche Warning is in effect immediately, through Saturday.
Problèmes avalancheux
Loose Wet
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Likely
- Taille
- 1–2.5
Afternoon sun is packing a punch on lower elevation, SW through W slopes. Ice climbers: be extremely cautious. Overhead hazards can catch sun early.
Deep Persistent Slabs
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Unlikely - Possible
- Taille
- 1.5–3
Caution in thin facetted snowpack areas where triggering is more likely. This is a low probability but high consequence problem.
Weather Forecast
Friday: Cloudy with scattered flurries (4cm); alpine: High -2 °C; ridge wind southwest: 20 km/h; freezing level: 2000m.
Saturday: Flurries (9cm); alpine: Low -9 °C, High -4 °C; light ridge wind; freezing level: 1500m.
Sunday: Cloudy with sunny periods; alpine: Low -13 °C, High -8 °C; ridge wind southwest: 10-30 km/h; freezing level: valley bottom.
Snowpack Summary
Warm temperature have resulted in warm moist conditions at TL and BTL. The snowpack is highly variable throughout the forecast region. A moist upper snowpack overlies a supportive mid-pack in the Icefields area. Shallow snowpack areas are week and failing in test results.
Avalanche Summary
Numerous loose wet and slab avalanches on solar aspects up to size 2, mostly at TL and BTL throughout the forecast region.