Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–2
New surface windslab developing with moderate to strong S-Swly winds. Look for these on northerly aspects at ridge top and open areas.
Bulletin d’avalanche
Voir sur la carteJasper
Apr 5 – 6, 2016Parks Canada
Archivé · expiré 10 years ago
Danger d’avalanche
Thu
Fri
Alpin
Sans niveau
Limite forestière
Sans niveau
Sous la limite
Sans niveau
Points saillants
Dust on crust and moderate west winds for Wednesday. Keep to slopes where the crust maintains strength enough to hold the rider.
Problèmes avalancheux
Cornices
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–2
Cornice failures are becoming more frequent lately. New snow and moderate West winds will increase size.
Deep Persistent Slabs
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 2–4
Cooling temperatures will reduce the likelihood of triggering this problem. Shallow areas are likely trigger spots.
Weather Forecast
Cloudy with scattered flurries with forecasted accumulation of 4cm. Alpine temperatures expected near +1 C with gusty moderate west winds keeping everything cool.
Snowpack Summary
Cold temps developing a strong surface crust (20cm to 3cm at 2100m) at tree-line and below. Isothermal snowpack with that crust holding up through the day Tues. making travel easy. Persistent slab, 30 to 70cms thick, reacting to compression tests on facets in the low moderate range. Expect to see this more reactive underfoot as crust breaks down.
Avalanche Summary
New and old activity to size 2.5, mostly on solar aspects observed by field teams today along the Icefields Parkway. Mix of loose wet and slab avalanches observed.