Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Unlikely - Possible
- Size
- 1–2.5
Moderate to strong winds have created new windslabs over a mix of surface conditions (facets, surface hoar, crust).
Avalanche forecast
View on mapJasper
Jan 25 – 26, 2019Parks Canada
Archived · expired 8 years ago
Avalanche danger
Sat
Sun
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
Highlights
Rising freezing levels on the weekend will increase the hazard. This may not be a widespread issue and you'll need to be keep aware to changing conditions locally, and over your head!
Avalanche problems
Deep Persistent Slabs
NNEESESSWWNW- Alpine
- Treeline
- Below treeline
- Likelihood
- Unlikely - Possible
- Size
- 1–3
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
Weather Forecast
Friday: Mainly cloudy with scattered flurries up to a max of 4cm. High -6 C. Light west winds. A significant warm-up is forecasted for Saturday with uncertainty as to freezing levels. Continue to monitor forecasted temperatures and freezing levels. A detailed mountain weather forecast is available from Avalanche Canada.
Snowpack Summary
New wind slabs, variable levels of misery, er...wind effect and sastrugi in the alpine and exposed TL areas. In sheltered areas, 10cm of low density snow overlies a mix of old surfaces (facets and/or surface hoar and sun crust). This, over a strong mid-pack sitting on the deep persistent weaknesses of facets and depth-hoar.
Avalanche Summary
One wind slab size 1.5 triggered by a cornice in the Parkers Ridge Area from steep rocky terrain. Main area of concern is where overhead cornices threaten unevenly distributed snowpack areas, increasing the probability of triggering a deep weakness. Report, and read about riding conditions on Avalanche Canada's Mountain Information Network.
Confidence
Freezing levels are uncertain on Saturday