Flash Flood in Dubuque County, Iowa
Flash Flood August 10, 2025 · Dubuque County, Iowa
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Whitewater creek completely out of its banks at Timberline golf course. Low areas of golf course flooded. Most creeks full or overflowing in southern Dubuque county. Swiss Valley Nature Reserve campground flooded and evacuated, due to flooding on Catfish Creek. Reported 6.50 inches of rain just southeast of Peosta, Iowa.
The wider storm
Multiple rounds of thunderstorms tracked across the area early Sunday August 10th, bringing very heavy rain, frequent lightning, and some localized gusty winds. Rainfall rates over 2/hr on top of saturated ground caused flash flooding with water over roadways and creeks overflowing. Late afternoon and evening storms brought more heavy rain and three brief tornadoes in Lee county in Iowa and Clark county in Missouri. No damage was reported or seen with these tornadoes.
Began near Peosta (42.3900, -90.8800).
Other tornadoes from the same storm system
2 more tornadoes the National Weather Service filed under this storm episode.
Source: NOAA Storm Events Database, event 1273417. Narratives are written by the National Weather Service forecast office that issued the report.
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