IOWA FLOW REPORT

Last Updated: December 24, 2025

Iowa's rivers currently exhibit a range of streamflow conditions, from below-normal flows in many locations to markedly high flows in a few areas, potentially affecting various recreational activities and water management. The Mississippi River at Clinton has a significant flow with 32,900 cubic feet per second (cfs), but this is still below the typical range by 31.71%, indicating a wider trend of reduced flow across the state. Conversely, the Raccoon River near West Des Moines is currently at a notable 1,300 cfs, astonishingly 279.79% above normal, signaling a substantial increase in water levels that may raise concerns for flooding and may intrigue kayakers looking for more challenging conditions.

Specific areas of interest include the Cedar River at Cedar Rapids, where the streamflow is 2,110 cfs, a decrease in flow by 54.14%, and the Des Moines River at Pella with 3,940 cfs, down by 19.98% from the norm. These variations point to flow inconsistencies that could affect water-based recreation and ecosystems in these watersheds. The Upper Iowa River, popular for its scenic paddling trails, is also experiencing changes, with the flow at Decorah measuring 257 cfs, a minor dip from its usual rate. The current gage height at Waverly on the Cedar River stands at 5.09 feet, highlighting a possible decline in normally navigable waters. These fluctuations emphasize the need for river users to stay informed about current conditions, as they may impact access to water trails, fishing quality, and local flood risks.

       



Iowa is characterized by a humid continental climate and an extensive network of rivers, streams, and tributaries that supply water to major reservoirs and dams. The Des Moines River Basin, which includes the Raccoon River, provides the largest water source for the state. The Missouri River forms the western boundary of the state and is the second-largest river in Iowa. Other major rivers include the Cedar, Iowa, and Wapsipinicon. Snowmelt and rainfall are the primary sources of water in Iowa, with the state receiving an average of 32 inches of precipitation per year. The state experiences both droughts and floods, with the most severe flood in recent history occurring in 2008. The Iowa Watershed Approach is a comprehensive approach to flood management that involves watershed management, floodplain restoration, and green infrastructure.