Wind Slabs
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Likely
- Dimensione
- 1–2
Be cautious as you transition in to open terrain, especially if the upper snowpack feels stiff and slabby.
We have received around 100cm of new snow in the past week. In some areas this new snow may overlie weak surface hoar crystals or a thin crust.
Stick to conservative lines until the new snow has had time to settle and bond.
Be cautious as you transition in to open terrain, especially if the upper snowpack feels stiff and slabby.
Steady snowfall mixed with occasional strong-moderate winds has formed widespread fresh storm slabs. At treeline and below these may overlie surface hoar or a sun crust (from a previous strong temperature inversion).
No new avalanches where observed on Thursday.
On Wednesday field teams observed soft storm slabs to be reactive to human triggers, as well as a couple of fresh natural avalanches up to size 1.5.
On Tuesday a widespread natural avalanche cycle occurred. Numerous natural storm slab avalanches up to size 2.5 were observed. Also, artillery avalanche control in the highway corridor produced numerous size 3-3.5 avalanches.
Recent snowfall totals to 85cm were accompanied by moderate to strong winds. This storm snow has buried a layer of surface hoar in sheltered areas at treeline & below. On solar slopes the storm snow buries a suncrust (created by a temperature inversion).
There are no persistent weak layers in the mid or lower snowpack.
Tonight Isolated flurries. Alpine Low -14°C. Ridgetop winds moderate W.
Fri Scattered flurries (5cm). Alpine high -8°C. Freezing level (FZL) valley bottom. Moderate SW wind.
Sat Sun & cloud mix. Alpine Low -6 °C, High -3 °C. FZL 1200m. Winds moderate-strong SW.
Sun Snow (~20cm). Alpine Low -7 °C, High -3 °C. FZL 1200m. Winds light SW.