Bulletin d’avalanche

Jasper

Jan 3 – 4, 2021

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Archivé · expiré 6 years ago

Danger d’avalanche

Mon

Tue

Alpin

4 · Fort

Limite forestière

4 · Fort

Sous la limite

3 · Marqué

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Points saillants

Highway 93N will be closed for avalanche control Sunday and possibly Monday. Check Alberta 511 for up to date information

Problèmes avalancheux

Wind Slabs
N
NE
E
SE
S
SW
W
NW
Alpin
Limite forestière
Sous la limite forestière
Probabilité
Very Likely
Taille
1–2.5
Recent new snow and southwesterly winds are creating new wind slabs reactive to human triggering.
Persistent Slabs
N
NE
E
SE
S
SW
W
NW
Alpin
Limite forestière
Sous la limite forestière
Probabilité
Possible - Likely
Taille
1–3
Storm Slabs
N
NE
E
SE
S
SW
W
NW
Alpin
Limite forestière
Sous la limite forestière
Probabilité
Possible - Likely
Taille
1–2.5
New snow and warm temperatures could create soft slabs that might be reactive

Weather Forecast

Tonight: Snow accumulation: 20 cm. Alpine temperature: Low -6 C. Ridge wind southwest: 15 km/h gusting to 50 km/h.Sunday: Flurries. Accumulation: 5 cm. Alpine temperature: High -6 C. Wind SW moderate.Monday: Isolated flurries Alpine temperature: Low -12 C, High -8 C. Ridge wind southwest: 15 km/h gusting to 40 km/h.

Snowpack Summary

Up to 50cm new snow by Sun morning with mod/strong SW winds overlies 25-40cm of soft snow over a firm mid-pack with facets and depth hoar lingering near the ground. Mid-December persistent layers, including SH, and SH/FC combos can be found down 25-40cm but, only in isolated and sheltered locations, and almost exclusively in the Icefields region

Avalanche Summary

No new avalanches observed on road patrol along highway 93N, however visibility was limited.Make your field trip observations count! Share them with the local outdoor adventure community on the Mountain Information Network from Avalanche Canada.

Confidence

Intensity of incoming weather systems is uncertain on Saturday

Régions couvertes

Jasper