Winter Storm — Upper Snake Highlands, Idaho

2018-02-16 to 2018-02-18 · Upper Snake Highlands, Idaho

Event narrative

A strong Pacific storm system dropped the following snow amounts on SNOTEL sites: Black Bear 30 inches, Phillips Bench 15 inches, and White Elephant 15 inches. the following roads were closed by the 17th: Highway 47, US 20 from Ashton to the Montana border, Highway 32 from Ashton to Tetonia, Highway 87 in Idaho and Highway 33.

Wider weather episode

A powerful winter storm brought heavy snow and winds to the mountains of southeast Idaho with the heaviest amounts in the Upper Snake River Highlands with many road closures including Highway 47, US 20, Highway 32, and Idaho Highway 87. Many locations recorded over a foot of snow.

Source: NOAA Storm Events Database, event_id 742226. Narrative written by the NWS forecast office that issued the report.