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 22 – 23, 2016Parks Canada
Archivé · expiré 10 years ago
Danger d’avalanche
Sun
Mon
Alpin
Sans niveau
Limite forestière
Sans niveau
Sous la limite
Sans niveau
Points saillants
Heavy wet snow expected through the weekend that will fall on a weak isothermal snowpack. Expect poor tree-line travel.
Problèmes avalancheux
Loose Wet
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Likely
- Taille
- 1–3
Rain and heavy snow overnight on Friday will continue the loose wet avalanche cycle.
Deep Persistent Slabs
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - 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
Rain turning to snow overnight with 10 cm possible. The freezing level will fall on Saturday and will hover around 2200m through the weekend. Seasonal temperatures with showers expected through the weekend.
Snowpack Summary
Rain changing to snow overnight adding ~10 cm of heavy wet snow. Isothermal conditions exist well into the alpine due to prolonged +3500m freezing level. Expecting a weak overnight recovery above 2500m on Friday night. The persistent slab problem still exists on north facing alpine slopes.
Avalanche Summary
No recent observations however expecting continued loose wet and wet slab avalanches especially with forecasted rain and wet snow through the weekend.