Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Unlikely - Possible
- Taille
- 1–2
It's windy. So, expect to find windslab developing in the immediate Lee of slopes and ridge tops.
Bulletin d’avalanche
Voir sur la carteJasper
Dec 19 – 20, 2016Parks Canada
Archivé · expiré 10 years ago
Danger d’avalanche
Mon
Tue
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
Points saillants
Problèmes avalancheux
Persistent Slabs
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Unlikely
- Taille
- 1–3
Although this layer has been dormant, it is still a concern and is widespread between 2100-2600m.
Loose Dry
NNEESESSWWNW- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - Likely
- Taille
- 1–2
Snow clinging to the mountain sides continues to shed from the steep terrain and sluffing and entrainment should be expected.
Weather Forecast
Monday should see a continuation of the flurries we are expecting overnight. Accumulations are uncertain but could be as much as 10cm by morning with a further 6-10cm over the day on Monday. Sw winds continuing to blow, with gusts into the strong range. Warming up to -11 in the alpine which should feel downright balmy after the deep freeze.
Snowpack Summary
Wind press and scouring on the surface. Cold temps faceted the snowpack breaking down internal cohesion, especially below 2100ms. Where shallow, expect to be standing on the ground. Deeper HS areas have faceted above and below the Nov12 crust (45-90cm deep). Look for isolated buried SH layer down 10 to 15cms on E through N asp. in sheltered areas.
Avalanche Summary
1 x sz 2 Slab (-24hrs) on east aspect, 2100ms. Bottom 1/3 of feature called Snowboarder Slope on Parkers Ridge. Several size 1 to 1.5 loose snow avalanches observed at TL and above from steep rocky terrain.
Confidence
Intensity of incoming weather systems is uncertain on Monday