Cornices
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Likely
- Taille
- 1–2
All cornices should be suspect for failure with continuing warm temperatures and rain on Friday.
Bulletin d’avalanche
Voir sur la carteJasper
Apr 21 – 22, 2016Parks Canada
Archivé · expiré 10 years ago
Danger d’avalanche
Sat
Sun
Alpin
Sans niveau
Limite forestière
Sans niveau
Sous la limite
Sans niveau
Points saillants
The heat wave is over! Heavy rain is expected on Friday. This will trigger further avalanche activity. What's on Netflix?
Problèmes avalancheux
Loose Wet
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Very Likely
- Taille
- 1–3
Warm overnight temperatures, freezing levels up to 3300m and 12mm of rain will keep the snowpack warm. Continued loose wet avalanches are expected on Friday.
Deep Persistent Slabs
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Likely
- Taille
- 3–4
This problem primarily remains on alpine slopes as much of the lower snowpack has either melted or is now isothermal.
Weather Forecast
The heat wave ends!! The freezing level is expected to drop below 3000 m on Friday afternoon along with 12 mm of rain. The rain will turn to snow (5 cm) on Friday night. Seasonal temperatures with showers expected through the weekend.
Snowpack Summary
Isothermal conditions exist well into the alpine even on North aspects due to prolonged +3500m freezing level. No overnight recovery expected on Thursday night. The persistent slab problem still exists on north facing alpine slopes. Expect a very weak snowpack everywhere else.
Avalanche Summary
No recent observations however expecting continued loose wet and wet slab avalanches especially with forecasted rain on Friday.