Winter Storm — Centennial Mountains-island Park, Idaho

2023-02-26 to 2023-02-28 · Centennial Mountains-island Park, Idaho

Event narrative

Another round of heavy snow and wind gusts of 40 to 60 mph again closed several roads. US Highway 20 closed from Ashton to the Montana state line. Idaho Highway 47 closed from Ashton to Warm River. Idaho Highway 87 closed from Island Park to the Montana state line. 20 inches of snow was estimated at the White elephant SNOTEL site. 12 inches was recorded at Macks Inn and 8 inches at Island Park.

Wider weather episode

Another powerful and moist Pacific storm brought heavy snow and strong winds yet again to southeast Idaho. Multiple roads were closed again due to snow and wind with heavy amounts recorded.

Source: NOAA Storm Events Database, event_id 1083812. Narrative written by the NWS forecast office that issued the report.