Flood — Lemhi, Idaho

2026-01-27 to 2026-01-29 · near Tendoy, Lemhi, Idaho

Event narrative

The Lemhi River exceeded action stage on the 27th and reached minor flood stage on the 28th. This caused yard flooding south of Tendoy, between Mabee Lane and McDevitt Creek Road, though no homes were impacted. The river crested at 7.07 feet at 2:00 PM MST on the 29th at the Lemhi River near Lemhi gauge, then receded that evening as ice broke up.

Wider weather episode

Cold temperatures resulted in a gradually build up of ice and water backing up on the Lemhi River between Tendoy and Lemhi.

View location on OpenStreetMap → (44.9396, -113.6392)

Source: NOAA Storm Events Database, event_id 1306552. Narrative written by the NWS forecast office that issued the report.