Flood in Lemhi County, Idaho

Flood January 27, 2026 – January 29, 2026 · Lemhi County, Idaho

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

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.

The wider storm

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

Began near Tendoy (44.9396, -113.6392).

Source: NOAA Storm Events Database, event 1306552. Narratives are written by the National Weather Service forecast office that issued the report.

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