Loose Dry
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Likely
- Taille
- 1–1.5
New low density snow sluffing out of very steep rocky terrain.
Bulletin d’avalanche
Voir sur la carteJasper
Feb 4 – 5, 2019Parks Canada
Archivé · expiré 8 years ago
Danger d’avalanche
Tue
Wed
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
3 · Marqué
Points saillants
Extreme cold conditions and road closures make decisions easy for back country activities. Highway 93N remains closed (estimated opening February 4th)
Problèmes avalancheux
Storm Slabs
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Likely
- Taille
- 1–2.5
Up to 50cm of recent snow followed by strong winds have redistributed the snow into thick slabs well into the terrain.
Deep Persistent Slabs
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - Likely
- Taille
- 1.5–4
New snow with strong winds may overload the deep persistent weakness.
Weather Forecast
The deep freeze continues, but with clear skies!Monday: Sunny with cloudy periods with no precipitation and a high of -19 C with light ridge winds.Tuesday: Sunny with cloudy periods with no precipitation and a low of -22 and High of -14 C with light winds from the North. A detailed mountain weather forecast is available from Avalanche Canada.
Snowpack Summary
50cm new snow in the past 48 hours and recent strong winds. This overlies a variety of surfaces from previous wind effect, sun crust and the Jan 18 surface hoar (most prominent in sheltered locations TL and below). We suspect the recent winds and new snow will be overloading the well settled mid pack and producing large scale avalanches
Avalanche Summary
Limited observations in the forecast region due to highway conditions, poor vis and temperatures too cold to perform helicopter bombing. Forecaster's remote triggered multiple size 1.5 to 2 and had explosive results to size 2 during highway avalanche control yesterday.Help forecast - share observations HERE, on the Mountain Information Network!