Flash Flood — Fremont, Wyoming

2025-08-27 · near Jeffrey City, Fremont, Wyoming

Event narrative

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.

Wider weather episode

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.

View location on OpenStreetMap → (42.4988, -107.8331)

Source: NOAA Storm Events Database, event_id 1293149. Narrative written by the NWS forecast office that issued the report.