Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Unlikely - Possible
- Dimensione
- 1–3
Wind slabs are present on lee slopes and cross-loaded features
Bollettino valanghe
Vedi sulla mappaJasper
Dec 10 – 11, 2019Parks Canada
Archiviato · scaduto 7 years ago
Pericolo valanghe
Wed
Thu
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
In sintesi
Ski quality is good but caution is advised as snow coverage over hazards such as rocks and trees may be thin. Avoid steep wind-loaded terrain.
Problemi valanghivi
Persistent Slabs
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Unlikely - Possible
- Dimensione
- 1–2
Isolated to very specific sheltered locations at treeline.
Loose Dry
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Unlikely - Possible
- Dimensione
- 1–1.5
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance.
Weather Forecast
Partly cloudy for Tues and Wed with no precipitation forecasted. Alpine winds will ease to light on Tues and shift westerly. Temperatures will rise to below freezing on Tues then fall back to -9 on Wed. Light flurries are possible on Thursday.
Snowpack Summary
Recent storm snow is mostly unconsolidated except where exposed to wind where soft slabs have been formed. The snow depth is variable at all elevations. There is a reactive crust in the mid-pack and a weak basal facet/depth hoar layer at the base of the pack.
Avalanche Summary
Several large avalanches were observed out of steep alpine features and numerous dry loose observed out of steep terrain were observed yesterday (Sunday). No new observations noted in the Columbia Icefields by 2 field teams today.
Confidence
Due to the number and quality of field observations on Tuesday