South River near Ackworth, IA

Warren County, Iowa · USGS gauge 05487470 · NWS AKWI4 · Iowa river levels

Is South River near Ackworth, IA flooding right now?

South River near Ackworth, IA measured 6.84 ft on 2026-09-11 01:15:00 UTC. That observation was 22.2 ft below its 29 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height

6.84 ft

as of 55 min ago

Streamflow

316 cfs

data refreshed 9 min ago

Minor flooding here begins at 29 ft, with major flooding at 32 ft. The highest crest on record was 32.85 ft on Sun, Jul 5, 1981.

Streamflow outlook

NOAA National Water Model forecast, issued 14 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

Category	Stage	Current distance
Action	26 ft	19.2 ft below
Minor flood	29 ft	22.2 ft below
Moderate flood	30 ft	23.2 ft below
Major flood	32 ft	25.2 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

Stage	Date
32.85 ft	1981-07-05
32 ft	1982-07-16
31.87 ft	2015-06-25
31.57 ft	2008-07-29
31.25 ft	1990-06-17

Nearby gauges

Gauge	Distance	County
Middle River near Indianola, IA	7.9 mi	Warren County
White Breast Creek near Dallas, IA	12.0 mi	Marion County
North River near Norwalk, IA	12.0 mi	Warren County
Des Moines River near Swan, IA	15.0 mi	Marion County
Des Moines River below Raccoon Riv at Des Moines, IA	17.7 mi	Polk County

Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast