Persistent Slabs
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1–2
The thin snowpack will make triggering a persistent slab avalanche possible today. Expect to find weak, faceted snow layers buried 1-2 feet deep on all aspects and elevations except for due southerly terrain below 9000'. Slabs may be thicker in areas where wind has deposited additional snow. Two days ago, multiple small human-triggered avalanches were reported near Two Ocean and Maverick Creek.
Slopes with rocky outcroppings, unsupported convexities, or wind-drifted features are the most likely spots to trigger a persistent slab avalanche. These avalanches may not show signs of instability and can be triggered remotely from above, below, or adjacent to slopes over 30°. Stay alert near terrain traps such as road cuts and creek beds where even a small avalanche can have large consequences. The best riding can be found on gentler terrain protected from the wind.
Additional Discussion:
Togwotee is forecasted to receive 2 - 4 inches of new snow by this evening and wind out of the west with gusts up to 30 mph. This will continue to load the weak snowpack, especially exposed slopes at higher elevations. If you find instability such as cracking or fresh drifts forming - move to more sheltered terrain.
(1/2/2025)
These avalanches occurred across north and south aspects at middle and upper elevations at Togwotee. Every recent avalanche has failed on weak snow near the base of the snowpack (~8-10 inches up from the ground)
Photo: Bridger-Teton Avalanche Center