Flood in Allamakee County, Iowa

Flood August 19, 2025 – August 21, 2025 · Allamakee County, Iowa

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

What the National Weather Service wrote

Heavy rain during the middle of August allowed the Upper Iowa River at Dorchester to rise into flood stage during the morning on August 18th. The site crested at 16.89 ft in minor flood stage during the evening on August 18th before falling below flood stage during the evening on August 19th.

The wider storm

Heavy rain throughout the middle of August contributed to rises along many area rivers in northeast Iowa. This included minor to moderate flooding along portions of the Little Cedar and Cedar Rivers, as well as the Upper Iowa and Turkey Rivers.

Began near Chester (43.4220, -91.5073).

Source: NOAA Storm Events Database, event 1289461. Narratives are written by the National Weather Service forecast office that issued the report.

Tornadoes near your address

See every tornado that passed near a place you know, measured to its path.