JACKSON, Wyo. — For the first time this season, avalanche danger is rated high at elevations above 9,000 in the Teton Range, according to today’s avalanche forecast from Bridger-Teton Avalanche Center written by Jackson Knoll.
“Travel in avalanche terrain is not advised,” the report states. At mid elevations, 7,500′-9,000′, the rating is considerable and at low elevations, 6,000′-7,500′, the rating is moderate.
According to the report, wind slabs and persistent slabs are the two major problems. The Tetons received 10-20 inches of snow in the last 24 hours combined with high winds, averaging 20-30 mph out of the south-southwest. Wind slab depths could exceed 4 feet at the upper elevations. Buried weak layers also exist, especially on high elevation, southerly aspects and mid-elevation northerly aspects. Slab depths could be in excess of 4 feet at the upper elevations and around 2-3 feet at the mid-elevations.
Avalanche mitigation conducted on Teton Pass early this morning by WYDOT triggered an avalanche that pushed 10 feet of debris on the highway, the report stated.
Tomorrow’s outlook predicts considerable ratings for the mid and upper elevations and moderate for low elevations.
Check the full avalanche forecast for the Tetons, Togwotee and Grey’s River range, released daily by the Bridger-Teton Avalanche Center here.