Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible - Likely
- Dimensione
- 1–2
A failure in this layer is likely to trigger the weak basal facet layer below.
Bollettino valanghe
Vedi sulla mappaJasper
Jan 14 – 15, 2014Parks Canada
Archiviato · scaduto 13 years ago
Pericolo valanghe
Tue
Wed
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
3 · Marcato
In sintesi
The natural cycle is tapering off now but the snowpack is proving very touchy to human triggering.
Problemi valanghivi
Storm Slabs
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Likely
- Dimensione
- 1–2
70cm of storm snow has fallen in the past 72hrs and has been redistributed by moderate to strong SW winds onto sheltered slopes in the alpine and treeline.
Deep Persistent Slabs
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 2–3
This layer is proving very susceptible to human triggering as evidenced by the two remotely triggered slides today. Extensive whumphing and cracking experienced particularly at treeline elevations.
Weather Forecast
Winds will continue to redistribute snow in the alpine and treeline elevations. Light snow will turn to rain at lower elevations as we go into a warming cycle.
Snowpack Summary
Up to 70cm of storm snow has been redistributed by moderate to strong SW winds creating wind slab over a strong mid-pack in lee features on top of a weak basal facets layer at the ground.
Avalanche Summary
A field team in the Maligne Lake area remotely triggered a size 2.5 from a distance of 20m. In the Icefields area a group remotely triggered a size 1.5. Both avalanches were on open slopes at treeline and ran on the basal facet layer. Whumphing and shooting cracks were observed in both locations. Some natural activity to size 2.5 observed.
Confidence
Freezing levels are uncertain on Wednesday