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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via https://www.weather.gov/owp/operations, as described in the StoryMap here.



Hydrograph River at a Glance Download
Iowa River at Marshalltown Stage (ft)Flow (cfs)Observed: 10.15 ft at 7:30PM Jun 04, 2023Observed: 10.15 ft at 7:45PM Jun 04, 2023Observed: 10.16 ft at 8:00PM Jun 04, 2023Observed: 10.16 ft at 8:15PM Jun 04, 2023Observed: 10.14 ft at 8:30PM Jun 04, 2023Observed: 10.16 ft at 8:45PM Jun 04, 2023Observed: 10.15 ft at 9:00PM Jun 04, 2023Observed: 10.15 ft at 9:15PM Jun 04, 2023Observed: 10.15 ft at 9:30PM Jun 04, 2023Observed: 10.16 ft at 9:45PM Jun 04, 2023Observed: 10.15 ft at 10:00PM Jun 04, 2023Observed: 10.16 ft at 10:15PM Jun 04, 2023Observed: 10.17 ft at 10:30PM Jun 04, 2023Observed: 10.16 ft at 10:45PM Jun 04, 2023Observed: 10.17 ft at 11:00PM Jun 04, 2023Observed: 10.17 ft at 11:15PM Jun 04, 2023Observed: 10.17 ft at 11:30PM Jun 04, 2023Observed: 10.17 ft at 11:45PM Jun 04, 2023Observed: 10.17 ft at 12:00AM Jun 05, 2023Observed: 10.16 ft at 12:15AM Jun 05, 2023Observed: 10.17 ft at 12:30AM Jun 05, 2023Observed: 10.17 ft at 12:45AM Jun 05, 2023Observed: 10.17 ft at 1:00AM Jun 05, 2023Observed: 10.17 ft at 1:15AM Jun 05, 2023Observed: 10.17 ft at 1:30AM Jun 05, 2023Observed: 10.18 ft at 1:45AM Jun 05, 2023Observed: 10.17 ft at 2:00AM Jun 05, 2023Observed: 10.17 ft at 2:15AM Jun 05, 2023Observed: 10.17 ft at 2:30AM Jun 05, 2023Observed: 10.18 ft at 2:45AM Jun 05, 2023Observed: 10.17 ft at 3:00AM Jun 05, 2023Observed: 10.18 ft at 3:15AM Jun 05, 2023Observed: 10.18 ft at 3:30AM Jun 05, 2023Observed: 10.17 ft at 3:45AM Jun 05, 2023Observed: 10.17 ft at 4:00AM Jun 05, 2023Observed: 10.18 ft at 4:15AM Jun 05, 2023Observed: 10.18 ft at 4:30AM Jun 05, 2023Observed: 10.17 ft at 4:45AM Jun 05, 2023Observed: 10.16 ft at 5:00AM Jun 05, 2023Observed: 10.17 ft at 5:15AM Jun 05, 2023Observed: 10.18 ft at 5:30AM Jun 05, 2023Observed: 10.18 ft at 5:45AM Jun 05, 2023Observed: 10.18 ft at 6:00AM Jun 05, 2023Observed: 10.18 ft at 6:15AM Jun 05, 2023Observed: 10.19 ft at 6:30AM Jun 05, 2023Observed: 10.19 ft at 6:45AM Jun 05, 2023Observed: 10.18 ft at 7:00AM Jun 05, 2023Observed: 10.18 ft at 7:15AM Jun 05, 2023Observed: 10.18 ft at 7:30AM Jun 05, 2023Observed: 10.17 ft at 7:45AM Jun 05, 2023Observed: 10.17 ft at 8:00AM Jun 05, 2023Observed: 10.16 ft at 8:15AM Jun 05, 2023Observed: 10.17 ft at 8:30AM Jun 05, 2023Observed: 10.17 ft at 8:45AM Jun 05, 2023Observed: 10.17 ft at 9:00AM Jun 05, 2023Observed: 10.18 ft at 9:15AM Jun 05, 2023Observed: 10.16 ft at 9:30AM Jun 05, 2023Observed: 10.17 ft at 9:45AM Jun 05, 2023Observed: 10.17 ft at 10:00AM Jun 05, 2023Observed: 10.17 ft at 10:15AM Jun 05, 2023Observed: 10.17 ft at 10:30AM Jun 05, 2023Observed: 10.17 ft at 10:45AM Jun 05, 2023Observed: 10.17 ft at 11:00AM Jun 05, 2023Observed: 10.18 ft at 11:15AM Jun 05, 2023Observed: 10.17 ft at 11:30AM Jun 05, 2023Observed: 10.17 ft at 11:45AM Jun 05, 2023Observed: 10.16 ft at 12:00PM Jun 05, 2023Observed: 10.17 ft at 12:15PM Jun 05, 2023Observed: 10.17 ft at 12:30PM Jun 05, 2023Observed: 10.17 ft at 12:45PM Jun 05, 2023Observed: 10.15 ft at 1:00PM Jun 05, 2023Observed: 10.12 ft at 1:15PM Jun 05, 2023Observed: 10.18 ft at 1:30PM Jun 05, 2023Observed: 10.18 ft at 1:45PM Jun 05, 2023Observed: 10.16 ft at 2:00PM Jun 05, 2023Observed: 10.17 ft at 2:15PM Jun 05, 2023Observed: 10.16 ft at 2:30PM Jun 05, 2023Observed: 10.16 ft at 2:45PM Jun 05, 2023Observed: 10.16 ft at 3:00PM Jun 05, 2023Observed: 10.12 ft at 3:15PM Jun 05, 2023Observed: 10.17 ft at 3:30PM Jun 05, 2023Observed: 10.15 ft at 3:45PM Jun 05, 2023Observed: 10.14 ft at 4:00PM Jun 05, 2023Observed: 10.16 ft at 4:15PM Jun 05, 2023Observed: 10.16 ft at 4:30PM Jun 05, 2023Observed: 10.15 ft at 4:45PM Jun 05, 2023Observed: 10.13 ft at 5:00PM Jun 05, 2023Observed: 10.13 ft at 5:15PM Jun 05, 2023Observed: 10.12 ft at 5:30PM Jun 05, 2023Observed: 10.15 ft at 5:45PM Jun 05, 2023Observed: 10.16 ft at 6:00PM Jun 05, 2023Observed: 10.14 ft at 6:15PM Jun 05, 2023Observed: 10.15 ft at 6:30PM Jun 05, 2023Observed: 10.14 ft at 6:45PM Jun 05, 2023Observed: 10.13 ft at 7:00PM Jun 05, 2023Observed: 10.14 ft at 7:15PM Jun 05, 2023Observed: 10.14 ft at 7:30PM Jun 05, 2023Observed: 10.14 ft at 7:45PM Jun 05, 2023Observed: 10.15 ft at 8:00PM Jun 05, 2023Observed: 10.15 ft at 8:15PM Jun 05, 2023Observed: 10.14 ft at 8:30PM Jun 05, 2023Observed: 10.14 ft at 8:45PM Jun 05, 2023Observed: 10.14 ft at 9:00PM Jun 05, 2023Observed: 10.13 ft at 9:15PM Jun 05, 2023Observed: 10.13 ft at 9:30PM Jun 05, 2023Observed: 10.13 ft at 9:45PM Jun 05, 2023Observed: 10.13 ft at 10:00PM Jun 05, 2023Observed: 10.13 ft at 10:15PM Jun 05, 2023Observed: 10.13 ft at 10:30PM Jun 05, 2023Observed: 10.14 ft at 10:45PM Jun 05, 2023Observed: 10.13 ft at 11:00PM Jun 05, 2023Observed: 10.13 ft at 11:15PM Jun 05, 2023Observed: 10.13 ft at 11:30PM Jun 05, 2023Observed: 10.13 ft at 11:45PM Jun 05, 2023Observed: 10.13 ft at 12:00AM Jun 06, 2023Observed: 10.13 ft at 12:15AM Jun 06, 2023Observed: 10.13 ft at 12:30AM Jun 06, 2023Observed: 10.12 ft at 12:45AM Jun 06, 2023Observed: 10.13 ft at 1:00AM Jun 06, 2023Observed: 10.13 ft at 1:15AM Jun 06, 2023Observed: 10.13 ft at 1:30AM Jun 06, 2023Observed: 10.12 ft at 1:45AM Jun 06, 2023Observed: 10.12 ft at 2:00AM Jun 06, 2023Observed: 10.12 ft at 2:15AM Jun 06, 2023Observed: 10.13 ft at 2:30AM Jun 06, 2023Observed: 10.13 ft at 2:45AM Jun 06, 2023Observed: 10.13 ft at 3:00AM Jun 06, 2023Observed: 10.12 ft at 3:15AM Jun 06, 2023Observed: 10.12 ft at 3:30AM Jun 06, 2023Observed: 10.12 ft at 3:45AM Jun 06, 2023Observed: 10.12 ft at 4:00AM Jun 06, 2023Observed: 10.12 ft at 4:15AM Jun 06, 2023Observed: 10.12 ft at 4:30AM Jun 06, 2023Observed: 10.12 ft at 4:45AM Jun 06, 2023Observed: 10.12 ft at 5:00AM Jun 06, 2023Observed: 10.12 ft at 5:15AM Jun 06, 2023Observed: 10.12 ft at 5:30AM Jun 06, 2023Observed: 10.11 ft at 5:45AM Jun 06, 2023Observed: 10.12 ft at 6:00AM Jun 06, 2023Observed: 10.13 ft at 6:15AM Jun 06, 2023Observed: 10.13 ft at 6:30AM Jun 06, 2023Observed: 10.12 ft at 6:45AM Jun 06, 2023Observed: 10.12 ft at 7:00AM Jun 06, 2023Observed: 10.11 ft at 7:15AM Jun 06, 2023Observed: 10.12 ft at 7:30AM Jun 06, 2023Observed: 10.11 ft at 7:45AM Jun 06, 2023Observed: 10.11 ft at 8:00AM Jun 06, 2023Observed: 10.11 ft at 8:15AM Jun 06, 2023Observed: 10.12 ft at 8:30AM Jun 06, 2023Observed: 10.11 ft at 8:45AM Jun 06, 2023Observed: 10.11 ft at 9:00AM Jun 06, 2023Observed: 10.11 ft at 9:15AM Jun 06, 2023Observed: 10.11 ft at 9:30AM Jun 06, 2023Observed: 10.11 ft at 9:45AM Jun 06, 2023Observed: 10.11 ft at 10:00AM Jun 06, 2023Observed: 10.1 ft at 10:15AM Jun 06, 2023Observed: 10.11 ft at 10:30AM Jun 06, 2023Observed: 10.11 ft at 10:45AM Jun 06, 2023Observed: 10.11 ft at 11:00AM Jun 06, 2023Observed: 10.11 ft at 11:15AM Jun 06, 2023Observed: 10.11 ft at 11:30AM Jun 06, 2023Observed: 10.11 ft at 11:45AM Jun 06, 2023Observed: 10.11 ft at 12:00PM Jun 06, 2023Observed: 10.11 ft at 12:15PM Jun 06, 2023Observed: 10.1 ft at 12:45PM Jun 06, 2023Observed: 10.11 ft at 1:00PM Jun 06, 2023Observed: 10.11 ft at 1:15PM Jun 06, 2023Observed: 10.11 ft at 1:30PM Jun 06, 2023Observed: 10.1 ft at 1:45PM Jun 06, 2023Observed: 10.1 ft at 2:00PM Jun 06, 2023Observed: 10.1 ft at 2:15PM Jun 06, 2023Observed: 10.1 ft at 2:30PM Jun 06, 2023Observed: 10.1 ft at 2:45PM Jun 06, 2023Observed: 10.11 ft at 3:00PM Jun 06, 2023Observed: 10.1 ft at 3:15PM Jun 06, 2023Observed: 10.1 ft at 3:30PM Jun 06, 2023Observed: 10.11 ft at 3:45PM Jun 06, 2023Observed: 10.11 ft at 4:00PM Jun 06, 2023Observed: 10.11 ft at 4:15PM Jun 06, 2023Observed: 10.1 ft at 4:30PM Jun 06, 2023Observed: 10.07 ft at 4:45PM Jun 06, 2023Observed: 10.09 ft at 5:00PM Jun 06, 2023Observed: 10.1 ft at 5:15PM Jun 06, 2023Observed: 10.1 ft at 5:30PM Jun 06, 2023Observed: 10.11 ft at 5:45PM Jun 06, 2023Observed: 10.13 ft at 6:00PM Jun 06, 2023Observed: 10.12 ft at 6:15PM Jun 06, 2023Observed: 10.12 ft at 6:30PM Jun 06, 2023Observed: 10.11 ft at 6:45PM Jun 06, 2023Observed: 10.11 ft at 7:00PM Jun 06, 2023Observed: 10.11 ft at 7:15PM Jun 06, 2023Observed: 10.12 ft at 7:30PM Jun 06, 2023Observed: 10.11 ft at 7:45PM Jun 06, 2023Observed: 10.11 ft at 8:00PM Jun 06, 2023Observed: 10.11 ft at 8:15PM Jun 06, 2023Observed: 10.1 ft at 8:30PM Jun 06, 2023Observed: 10.11 ft at 8:45PM Jun 06, 2023Observed: 10.11 ft at 9:00PM Jun 06, 2023Observed: 10.11 ft at 9:15PM Jun 06, 2023Observed: 10.11 ft at 9:30PM Jun 06, 2023Observed: 10.11 ft at 9:45PM Jun 06, 2023Observed: 10.12 ft at 10:00PM Jun 06, 2023Observed: 10.11 ft at 10:15PM Jun 06, 2023Observed: 10.11 ft at 10:30PM Jun 06, 2023Observed: 10.11 ft at 10:45PM Jun 06, 2023Observed: 10.12 ft at 11:00PM Jun 06, 2023Observed: 10.12 ft at 11:15PM Jun 06, 2023Observed: 10.12 ft at 11:30PM Jun 06, 2023Observed: 10.13 ft at 11:45PM Jun 06, 2023Observed: 10.13 ft at 12:00AM Jun 07, 2023Observed: 10.13 ft at 12:15AM Jun 07, 2023Observed: 10.14 ft at 12:30AM Jun 07, 2023Observed: 10.14 ft at 12:45AM Jun 07, 2023Observed: 10.14 ft at 1:00AM Jun 07, 2023Observed: 10.14 ft at 1:15AM Jun 07, 2023Observed: 10.15 ft at 1:30AM Jun 07, 2023Observed: 10.15 ft at 1:45AM Jun 07, 2023Observed: 10.16 ft at 2:00AM Jun 07, 2023Observed: 10.16 ft at 2:15AM Jun 07, 2023Observed: 10.15 ft at 2:30AM Jun 07, 2023Observed: 10.15 ft at 2:45AM Jun 07, 2023Observed: 10.16 ft at 3:00AM Jun 07, 2023Observed: 10.16 ft at 3:15AM Jun 07, 2023Observed: 10.16 ft at 3:30AM Jun 07, 2023Observed: 10.16 ft at 3:45AM Jun 07, 2023Observed: 10.16 ft at 4:00AM Jun 07, 2023Observed: 10.15 ft at 4:15AM Jun 07, 2023Observed: 10.16 ft at 4:30AM Jun 07, 2023Observed: 10.17 ft at 4:45AM Jun 07, 2023Observed: 10.16 ft at 5:00AM Jun 07, 2023Observed: 10.16 ft at 5:15AM Jun 07, 2023Observed: 10.15 ft at 5:30AM Jun 07, 2023Observed: 10.15 ft at 5:45AM Jun 07, 2023Observed: 10.15 ft at 6:00AM Jun 07, 2023Observed: 10.15 ft at 6:15AM Jun 07, 2023Observed: 10.13 ft at 6:30AM Jun 07, 2023Observed: 10.12 ft at 6:45AM Jun 07, 2023Observed: 10.12 ft at 7:00AM Jun 07, 2023Observed: 10.14 ft at 7:15AM Jun 07, 2023Observed: 10.16 ft at 7:30AM Jun 07, 2023Observed: 10.13 ft at 7:45AM Jun 07, 2023Observed: 10.14 ft at 8:00AM Jun 07, 2023Observed: 10.1 ft at 8:15AM Jun 07, 2023Observed: 10.15 ft at 8:30AM Jun 07, 2023Observed: 10.14 ft at 8:45AM Jun 07, 2023Observed: 10.14 ft at 9:00AM Jun 07, 2023Observed: 10.12 ft at 9:15AM Jun 07, 2023Observed: 10.13 ft at 9:30AM Jun 07, 2023Observed: 10.1 ft at 9:45AM Jun 07, 2023Observed: 10.17 ft at 10:00AM Jun 07, 2023Observed: 10.17 ft at 10:15AM Jun 07, 2023Observed: 10.2 ft at 10:30AM Jun 07, 2023Observed: 10.19 ft at 10:45AM Jun 07, 2023Observed: 10.19 ft at 11:00AM Jun 07, 2023Observed: 10.17 ft at 11:15AM Jun 07, 2023Observed: 10.17 ft at 11:30AM Jun 07, 2023Observed: 10.18 ft at 11:45AM Jun 07, 2023Observed: 10.21 ft at 12:00PM Jun 07, 2023Observed: 10.2 ft at 12:15PM Jun 07, 2023Highest Observation: 10.22 ft at 12:30PM Jun 07, 2023Observed: 10.17 ft at 12:45PM Jun 07, 2023Observed: 10.15 ft at 1:00PM Jun 07, 2023Observed: 10.16 ft at 1:15PM Jun 07, 2023Observed: 10.16 ft at 1:30PM Jun 07, 2023Observed: 10.16 ft at 1:45PM Jun 07, 2023Observed: 10.15 ft at 2:00PM Jun 07, 2023Observed: 10.12 ft at 2:15PM Jun 07, 2023Observed: 10.17 ft at 2:30PM Jun 07, 2023Observed: 10.15 ft at 2:45PM Jun 07, 2023Observed: 10.17 ft at 3:00PM Jun 07, 2023Observed: 10.17 ft at 3:15PM Jun 07, 2023Observed: 10.16 ft at 3:30PM Jun 07, 2023Observed: 10.15 ft at 3:45PM Jun 07, 2023Observed: 10.16 ft at 4:00PM Jun 07, 2023Observed: 10.17 ft at 4:15PM Jun 07, 2023Observed: 10.17 ft at 4:30PM Jun 07, 2023Observed: 10.17 ft at 4:45PM Jun 07, 2023Observed: 10.17 ft at 5:00PM Jun 07, 2023Observed: 10.17 ft at 5:15PM Jun 07, 2023Observed: 10.17 ft at 5:30PM Jun 07, 2023Observed: 10.17 ft at 5:45PM Jun 07, 2023Observed: 10.17 ft at 6:00PM Jun 07, 2023Observed: 10.16 ft at 6:15PM Jun 07, 2023Observed: 10.15 ft at 6:30PM Jun 07, 2023Observed: 10.17 ft at 6:45PM Jun 07, 2023Observed: 10.16 ft at 7:00PM Jun 07, 2023Observed: 10.16 ft at 7:15PM Jun 07, 2023Observed: 10.16 ft at 7:30PM Jun 07, 2023Observed: 10.16 ft at 7:45PM Jun 07, 2023Observed: 10.16 ft at 8:00PM Jun 07, 2023Observed: 10.16 ft at 8:15PM Jun 07, 2023Observed: 10.16 ft at 8:30PM Jun 07, 2023Observed: 10.16 ft at 8:45PM Jun 07, 2023Observed: 10.17 ft at 9:00PM Jun 07, 2023Observed: 10.17 ft at 9:15PM Jun 07, 2023Observed: 10.17 ft at 9:30PM Jun 07, 2023Observed: 10.17 ft at 9:45PM Jun 07, 2023Observed: 10.17 ft at 10:00PM Jun 07, 2023Observed: 10.17 ft at 10:15PM Jun 07, 2023Observed: 10.17 ft at 10:30PM Jun 07, 2023Observed: 10.17 ft at 10:45PM Jun 07, 2023Observed: 10.17 ft at 11:00PM Jun 07, 2023Observed: 10.18 ft at 11:15PM Jun 07, 2023Observed: 10.18 ft at 11:30PM Jun 07, 2023Observed: 10.17 ft at 11:45PM Jun 07, 2023Observed: 10.18 ft at 12:00AM Jun 08, 2023Observed: 10.18 ft at 12:15AM Jun 08, 2023Observed: 10.19 ft at 12:30AM Jun 08, 2023Observed: 10.18 ft at 12:45AM Jun 08, 2023Observed: 10.18 ft at 1:00AM Jun 08, 2023Observed: 10.18 ft at 1:15AM Jun 08, 2023Observed: 10.18 ft at 1:30AM Jun 08, 2023Observed: 10.18 ft at 1:45AM Jun 08, 2023Observed: 10.18 ft at 2:00AM Jun 08, 2023Observed: 10.18 ft at 2:15AM Jun 08, 2023Observed: 10.18 ft at 2:30AM Jun 08, 2023Observed: 10.18 ft at 2:45AM Jun 08, 2023Observed: 10.17 ft at 3:00AM Jun 08, 2023Observed: 10.18 ft at 3:15AM Jun 08, 2023Observed: 10.18 ft at 3:30AM Jun 08, 2023Observed: 10.18 ft at 3:45AM Jun 08, 2023Observed: 10.18 ft at 4:00AM Jun 08, 2023Observed: 10.15 ft at 4:15AM Jun 08, 2023Observed: 10.17 ft at 4:30AM Jun 08, 2023Observed: 10.18 ft at 4:45AM Jun 08, 2023Observed: 10.17 ft at 5:00AM Jun 08, 2023Observed: 10.17 ft at 5:15AM Jun 08, 2023Observed: 10.17 ft at 5:30AM Jun 08, 2023Observed: 10.16 ft at 5:45AM Jun 08, 2023Observed: 10.16 ft at 6:00AM Jun 08, 2023Observed: 10.17 ft at 6:15AM Jun 08, 2023Observed: 10.17 ft at 6:30AM Jun 08, 2023Observed: 10.17 ft at 6:45AM Jun 08, 2023Observed: 10.18 ft at 7:00AM Jun 08, 2023Observed: 10.17 ft at 7:15AM Jun 08, 2023Observed: 10.15 ft at 7:30AM Jun 08, 2023Observed: 10.16 ft at 7:45AM Jun 08, 2023Observed: 10.18 ft at 8:00AM Jun 08, 2023Observed: 10.16 ft at 8:15AM Jun 08, 2023Observed: 10.17 ft at 8:30AM Jun 08, 2023Observed: 10.17 ft at 8:45AM Jun 08, 2023Observed: 10.18 ft at 9:00AM Jun 08, 2023Observed: 10.15 ft at 9:15AM Jun 08, 2023Observed: 10.16 ft at 9:30AM Jun 08, 2023Observed: 10.14 ft at 9:45AM Jun 08, 2023Observed: 10.16 ft at 10:00AM Jun 08, 2023Observed: 10.15 ft at 10:15AM Jun 08, 2023Observed: 10.16 ft at 10:30AM Jun 08, 2023Observed: 10.16 ft at 10:45AM Jun 08, 2023Observed: 10.16 ft at 11:00AM Jun 08, 2023Observed: 10.15 ft at 11:15AM Jun 08, 2023Observed: 10.16 ft at 11:30AM Jun 08, 2023Observed: 10.16 ft at 11:45AM Jun 08, 2023Observed: 10.16 ft at 12:00PM Jun 08, 2023Observed: 10.16 ft at 12:15PM Jun 08, 2023Observed: 10.16 ft at 12:30PM Jun 08, 2023Observed: 10.15 ft at 12:45PM Jun 08, 2023Observed: 10.15 ft at 1:00PM Jun 08, 2023Observed: 10.15 ft at 1:15PM Jun 08, 2023Observed: 10.16 ft at 1:30PM Jun 08, 2023Observed: 10.12 ft at 1:45PM Jun 08, 2023Observed: 10.14 ft at 2:00PM Jun 08, 2023Observed: 10.15 ft at 2:15PM Jun 08, 2023Observed: 10.16 ft at 2:30PM Jun 08, 2023Observed: 10.15 ft at 2:45PM Jun 08, 2023Observed: 10.15 ft at 3:00PM Jun 08, 2023Observed: 10.15 ft at 3:15PM Jun 08, 2023Observed: 10.14 ft at 3:30PM Jun 08, 2023Observed: 10.13 ft at 3:45PM Jun 08, 2023Observed: 10.11 ft at 4:00PM Jun 08, 2023Observed: 10.13 ft at 4:15PM Jun 08, 2023Observed: 10.14 ft at 4:30PM Jun 08, 2023Observed: 10.15 ft at 4:45PM Jun 08, 2023Observed: 10.15 ft at 5:00PM Jun 08, 2023Observed: 10.11 ft at 5:15PM Jun 08, 2023Observed: 10.13 ft at 5:30PM Jun 08, 2023Observed: 10.15 ft at 5:45PM Jun 08, 2023Observed: 10.14 ft at 6:00PM Jun 08, 2023Observed: 10.14 ft at 6:15PM Jun 08, 2023Observed: 10.14 ft at 6:30PM Jun 08, 2023Observed: 10.14 ft at 6:45PM Jun 08, 2023Observed: 10.13 ft at 7:00PM Jun 08, 2023Observed: 10.13 ft at 7:15PM Jun 08, 2023Observed: 10.13 ft at 7:30PM Jun 08, 2023Observed: 10.13 ft at 7:45PM Jun 08, 2023Observed: 10.13 ft at 8:00PM Jun 08, 2023Observed: 10.13 ft at 8:15PM Jun 08, 2023Observed: 10.13 ft at 8:30PM Jun 08, 2023Observed: 10.13 ft at 8:45PM Jun 08, 2023Observed: 10.12 ft at 9:00PM Jun 08, 2023Observed: 10.13 ft at 9:15PM Jun 08, 2023Observed: 10.13 ft at 9:30PM Jun 08, 2023Observed: 10.13 ft at 9:45PM Jun 08, 2023Observed: 10.13 ft at 10:00PM Jun 08, 2023Observed: 10.12 ft at 10:15PM Jun 08, 2023Observed: 10.13 ft at 10:30PM Jun 08, 2023Observed: 10.13 ft at 10:45PM Jun 08, 2023Observed: 10.13 ft at 11:00PM Jun 08, 2023Observed: 10.13 ft at 11:15PM Jun 08, 2023Observed: 10.13 ft at 11:30PM Jun 08, 2023Observed: 10.13 ft at 11:45PM Jun 08, 2023Observed: 10.12 ft at 12:00AM Jun 09, 2023Observed: 10.13 ft at 12:15AM Jun 09, 2023Observed: 10.13 ft at 12:30AM Jun 09, 2023Observed: 10.13 ft at 12:45AM Jun 09, 2023Observed: 10.13 ft at 1:00AM Jun 09, 2023Observed: 10.13 ft at 1:15AM Jun 09, 2023Observed: 10.13 ft at 1:30AM Jun 09, 2023Observed: 10.13 ft at 1:45AM Jun 09, 2023Observed: 10.13 ft at 2:00AM Jun 09, 2023Observed: 10.12 ft at 2:15AM Jun 09, 2023Observed: 10.12 ft at 2:30AM Jun 09, 2023Observed: 10.12 ft at 2:45AM Jun 09, 2023Observed: 10.11 ft at 3:00AM Jun 09, 2023Observed: 10.12 ft at 3:15AM Jun 09, 2023Observed: 10.12 ft at 3:30AM Jun 09, 2023Observed: 10.12 ft at 3:45AM Jun 09, 2023Observed: 10.12 ft at 4:00AM Jun 09, 2023Observed: 10.12 ft at 4:15AM Jun 09, 2023Observed: 10.12 ft at 4:30AM Jun 09, 2023Observed: 10.12 ft at 4:45AM Jun 09, 2023Observed: 10.13 ft at 5:00AM Jun 09, 2023Observed: 10.12 ft at 5:15AM Jun 09, 2023Observed: 10.13 ft at 5:30AM Jun 09, 2023Observed: 10.12 ft at 5:45AM Jun 09, 2023Observed: 10.11 ft at 6:00AM Jun 09, 2023Observed: 10.12 ft at 6:15AM Jun 09, 2023Observed: 10.11 ft at 6:30AM Jun 09, 2023Observed: 10.11 ft at 6:45AM Jun 09, 2023Observed: 10.11 ft at 7:00AM Jun 09, 2023Observed: 10.12 ft at 7:15AM Jun 09, 2023Observed: 10.11 ft at 7:30AM Jun 09, 2023Observed: 10.11 ft at 7:45AM Jun 09, 2023Observed: 10.11 ft at 8:00AM Jun 09, 2023Observed: 10.1 ft at 8:15AM Jun 09, 2023Observed: 10.11 ft at 8:30AM Jun 09, 2023Observed: 10.11 ft at 8:45AM Jun 09, 2023Observed: 10.11 ft at 9:00AM Jun 09, 2023Observed: 10.11 ft at 9:15AM Jun 09, 2023Observed: 10.1 ft at 9:30AM Jun 09, 2023Observed: 10.11 ft at 9:45AM Jun 09, 2023Observed: 10.11 ft at 10:00AM Jun 09, 2023Observed: 10.1 ft at 10:15AM Jun 09, 2023Observed: 10.11 ft at 10:30AM Jun 09, 2023Observed: 10.1 ft at 10:45AM Jun 09, 2023Observed: 10.1 ft at 11:00AM Jun 09, 2023Observed: 10.1 ft at 11:15AM Jun 09, 2023Observed: 10.1 ft at 11:30AM Jun 09, 2023Observed: 10.1 ft at 11:45AM Jun 09, 2023Observed: 10.1 ft at 12:00PM Jun 09, 2023Observed: 10.11 ft at 12:15PM Jun 09, 2023Observed: 10.1 ft at 12:30PM Jun 09, 2023Observed: 10.11 ft at 12:45PM Jun 09, 2023Observed: 10.11 ft at 1:00PM Jun 09, 2023Observed: 10.1 ft at 1:15PM Jun 09, 2023Observed: 10.11 ft at 1:30PM Jun 09, 2023Observed: 10.1 ft at 1:45PM Jun 09, 2023Observed: 10.11 ft at 2:00PM Jun 09, 2023Observed: 10.1 ft at 2:15PM Jun 09, 2023Observed: 10.1 ft at 2:30PM Jun 09, 2023Observed: 10.08 ft at 2:45PM Jun 09, 2023Observed: 10.1 ft at 3:00PM Jun 09, 2023Observed: 10.1 ft at 3:15PM Jun 09, 2023Observed: 10.1 ft at 3:30PM Jun 09, 2023Observed: 10.1 ft at 3:45PM Jun 09, 2023Observed: 10.11 ft at 4:00PM Jun 09, 2023Observed: 10.11 ft at 4:15PM Jun 09, 2023Observed: 10.11 ft at 4:30PM Jun 09, 2023Observed: 10.1 ft at 4:45PM Jun 09, 2023Observed: 10.1 ft at 5:00PM Jun 09, 2023Observed: 10.11 ft at 5:15PM Jun 09, 2023Observed: 10.09 ft at 5:30PM Jun 09, 2023Observed: 10.09 ft at 5:45PM Jun 09, 2023Observed: 10.09 ft at 6:00PM Jun 09, 2023USGS--Water Resources of the United StatesMIWI4(plotting HGIRV) Graph Created (7:19PM Jun 9, 2023)ObservedLatest observed value: 10.09 ft at 6:00 PM CDT 9-Jun-2023. Flood Stage is 19 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Iowa River at Marshalltown are issued as needed during times of high water, but are not routinely available.

More information on datums is available at www.ngs.noaa.gov/faq.shtml

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - near Tama Hwy E49
Flood Categories (in feet)
Major Flood Stage: 26
Moderate Flood Stage: 23
Flood Stage: 19
Action Stage: 14
Low Stage (in feet): -9999

Historic Crests
(1) 22.25 ft on 07/02/2014
(2) 22.08 ft on 05/30/2013
(3) 21.79 ft on 06/13/2008
(4) 20.77 ft on 08/17/1993
(5) 20.38 ft on 12/15/2015
(6) 20.38 ft on 06/18/1990
(7) 20.32 ft on 03/15/2019
(8) 20.13 ft on 06/24/2007
(9) 19.99 ft on 08/30/2015
(10) 19.97 ft on 06/05/1991
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 13.22 ft on 03/07/2021
(2) 0.00 ft on 03/06/2021
(3) 18.21 ft on 06/23/2020
(4) 20.32 ft on 03/15/2019
(5) 18.25 ft on 09/27/2018
(6) 17.63 ft on 10/01/2016
(7) 20.38 ft on 12/15/2015
(8) 19.99 ft on 08/30/2015
(9) 22.25 ft on 07/02/2014
(10) 22.08 ft on 05/30/2013
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:13
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Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
26 Water reaches the top of the earthen levee along the river at Iowa 14.
22 Water reaches the low beams of the Iowa 14 bridge.
21.5 Water affects several roads east of Marshalltown...including U.S. 30...East Main Street Road and Zeller Avenue.
21.4 Water covers both lanes of Iowa 14 north of Marshalltown.
21.2 Water covers several gravel roads north and northwest of Marshalltown...including Stanley Mill Road...North Center Street...Oaks Avenue and Prairie Avenue.
21 Iowa 330 south of Albion...near Timmons Grove Park...is closed. Most of Timmons Grove County Park floods.
20.5 In Albion...parts of Marsh Avenue...Stanley Mill Road and 160th Street flood. Iowa 330 is threatened near the Linn Creek overpass which is located west of Marshalltown about 2 miles northeast of the US 30 junction.
20 Water approaches the top of the concrete bridge piers of the Iowa 14 bridge.
19.5 The southbound lanes of Iowa 14 flood. Iowa 330 south of Albion floods.
19 Water affects Iowa 14 north of the river as well as Iowa 330 south of Albion.
18 Widespread agricultural and lowland flooding occur along Iowa 330 south of Albion.
17 Roads within Timmons Grove County Park are threatened as is the bicycle path along 18th Avenue in Marshalltown.
16.5 The underside of the primary concrete support span of Iowa 14 is affected.
16 The access road serving north portions of Timmons Grove County Park floods.
15 Water approaches the bridge crossing from the County Three Bridges Road east of Marshalltown. Water affects agricultural land.
14 There is lowland flooding north of town near Iowa 14.
About This Location Collapse

Latitude: 42.065821° N, Longitude: 92.907700° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 19 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 852.94 ft Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
  • USGS 7-Day Streamflow Duration Hydrograph for this location:
    Duration Hydrograph

    Duration Hydrograph Legend


  • USGS Cumulative Streamflow Hydrograph for this location:
    Duration Hydrograph of Cumulative Streamflow
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Hydrologic Resources Additional Resources
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Des Moines Weather Forecast Office
9607 NW Beaver Dr.
Des Moines, IA 50131
(515) 270-2614
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