Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1–4
New windslabs could be formed below ridgetop and on crossloaded features with forecasted strong West winds.
Bollettino valanghe
Vedi sulla mappaSouth Rockies
Jan 2 – 3, 2013Avalanche Canada
Archiviato · scaduto 14 years ago
Pericolo valanghe
Fri
Sat
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
In sintesi
Problemi valanghivi
Loose Wet
NNEESESSWWNW- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible - Likely
- Dimensione
- 1–3
Warming and direct sun may weaken surface snow layers, especially on steep, sun-warmed slopes.
Confidence
Fair - Timing or intensity of solar radiation is uncertain
Weather Forecast
Wednesday night and Thursday: An upper ridge persists on the region bringing dry conditions, moderate to strong winds from the W and an inversion dissipating in the afternoon bringing temperatures above the freezing level between 2000 m. and 2500 m. Friday: Traces of snow are forecasted with moderate winds from the W and dropping freezing levels to 300 m. Saturday: Similar conditions are expected with lighter winds from the SW and slightly warmer temperatures than the day before (around -7 C in the alpine).
Avalanche Summary
No new recent observations.
Snowpack Summary
Surface layers (windslabs in alpine lee areas, cornices and loose snow in sheltered areas) may become weak with solar radiation and forecast warming temperatures. A generally settled upper snowpack overlies two or more buried crusts. The December crust is found 70-140 cm below the surface and the November crust/facet layer is near the base of the snowpack. Recent snowpack tests have shown little reactivity on these layers, apart from in the Flathead Range near Fernie, where there is a lingering possibility of triggering a deep avalanche in specific thin, rocky snowpack areas. Check out the forecaster’s blog for more discussion on this.