Flash Flood in Fremont County, Wyoming

Flash Flood August 27, 2025 · Fremont County, Wyoming

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

What the National Weather Service wrote

The public reported ponding water in low spots throughout Jeffrey City. Radar estimates showed 1.0 to 1.5 inches of rain falling on the town of Jeffrey City within a 1 hour period, with up to 2 inches falling west of town. Rainfall rates were estimated to be as high as 6 inches per hour.

The wider storm

A significant push of monsoonal moisture brought rainfall to much of Wyoming on 8/27/25. Thunderstorms with high rainfall rates near Jeffrey City led to flash flooding for portions of the town. The public reported ponding water in low spots throughout Jeffrey City. Radar estimates showed 1.0 to 1.5 inches of rain falling on the town of Jeffrey City within a 1 hour period, with up to 2 inches falling west of town. Rainfall rates were estimated to be as high as 6 inches per hour.

Began near Jeffrey City (42.4988, -107.8331).

Source: NOAA Storm Events Database, event 1293149. Narratives are written by the National Weather Service forecast office that issued the report.

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