Flood in Yuma County, Arizona
Flood September 4, 2025 – September 5, 2025 · Yuma County, Arizona
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Avenue 27E at the Gila River crossing closed. Start and end times of the flooding estimated based on the downstream USGS gauge going above and then below action stage. No damages or injuries reported.
The wider storm
An upper-level trough moving through the area providing strong upper-level ascent combined with MLCAPE values between 1500-3000 J/kg and PWAT values between 1.8-2.0 (associated with the remnants of Tropical Cyclone Lorena) resulted in numerous showers and thunderstorms across much of western AZ and southern CA. A cluster of strong to severe thunderstorms developed during the late afternoon hours over Yuma County and slowly moved westward, reaching the Lower Colorado River Valley before dissipating. With this cluster of storms, damaging winds, flash flooding and areas of dense blowing dust were observed with the City of Yuma area seeing the most impacts.
Began near Wellton (32.7000, -114.1782).
Source: NOAA Storm Events Database, event 1292696. Narratives are written by the National Weather Service forecast office that issued the report.
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