Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–2.5
Fresh wind slabs sit on a variety of old surfaces. Winds continue to gust moderate from the SW.
Bulletin d’avalanche
Voir sur la carteJasper
Mar 15 – 16, 2019Parks Canada
Archivé · expiré 8 years ago
Danger d’avalanche
Sun
Mon
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
Points saillants
Avalanche hazard will rise with the temperature and freezing levels.
Problèmes avalancheux
Loose Dry
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Unlikely - Possible
- Taille
- 1–2
Natural triggering has abated but human triggering remains a possibility, particularly in steep north facing sheltered terrain.
Loose Wet
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - Likely
- Taille
- 1–1.5
Watch out for steep rocky features.
Weather Forecast
A ridge of high pressure is bringing the heat for the weekend and into next week. Watch for freezing levels to rise.For the Columbia Icefield Area:Saturday Cloudy with sunny periods.Precipitation: Nil.Treeline temperature: High -4 C.Ridge wind west: 10 km/h.Freezing level: 1800 metres.
Snowpack Summary
Moist surface snow treeline and below and the alpine is heavily wind effected. Deep snowpack areas are relatively strong through most of the region. Shallow areas are weak, and will morph quickly to moist 'spring like' slab conditions from the surface down. With the persistent basal weakness, this could fail with the full depth of the snowpack.
Avalanche Summary
On Friday several loose wet avalanches on steep, solar, rocky below treeline features and a windslab avalanche in the alpine on a cross-loaded south feature at 2500m Tuesday a group of skiers triggered a wind slab in the backcountry behind Marmot Basin. It was on a north alpine aspect with shallow snowpack, scree ground, and severely wind affected.