Overview Realtime Historical Map View
Flood Warning
2026-10-10T02:08:00-05:00

...The Flood Warning continues for the following rivers in Iowa... Cedar River near Conesville affecting Muscatine and Louisa Counties. Iowa River at Oakville affecting Louisa County. Iowa River at Wapello affecting Louisa County. Iowa River at Marengo affecting Iowa and Benton Counties.* WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Iowa River at Marengo. * WHEN...Until late Friday night. * IMPACTS...At 16.0 feet, Water affects agricultural land along the river. Water is several feet deep in places. * ADDITIONAL DETAILS... - At 8:00 PM CDT Tuesday the stage was 15.7 feet. - Forecast...The river is expected to rise to a crest of 16.1 feet Thursday morning. It will then fall below flood stage Friday evening. - Flood stage is 15.0 feet.

Iowa River Near Belle Plaine, Ia Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015
01-01 4230.0
01-02 3880.0
01-03 3593.33
01-04 3410.0
01-05 3183.33
01-06 2983.33
01-07 2853.33
01-08 3046.67
01-09 3173.33
01-10 3090.0
01-11 2840.0
01-12 2826.67
01-13 3030.0
01-14 3480.0
01-15 3483.33
01-16 3453.33
01-17 3256.67
01-18 3315.0
01-19 2895.0
01-20 2865.0
01-21 2885.0
01-22 2990.0
01-23 3060.0
01-24 3120.0
01-25 3040.0
01-26 1920.0
01-27 2210.0
01-28 3105.0
01-29 3650.0
01-30 3710.0
01-31 3540.0
02-01 3160.0
02-02 2910.0
02-03 3010.0
02-04 3130.0
02-05 2660.0
02-06 2390.0
02-07 2310.0
02-08 2540.0
02-09 2420.0
02-10 1980.0
02-11 1910.0
02-12 1900.0
02-13 1970.0
02-14 2000.0
02-15 1930.0
02-16 2000.0
02-17 2050.0
02-18 1960.0
02-26 5890.0
02-27 5390.0
02-28 4880.0
02-29 4630.0
03-01 4530.0
03-02 4350.0
03-03 4735.0
03-04 4315.0
03-05 3420.0
03-06 2982.5
03-07 2262.5
03-08 2672.5
03-09 2755.0
03-10 2775.33
03-11 2760.57
03-12 2383.63
03-13 2221.63
03-14 2090.38
03-15 1837.11
03-16 1782.11
03-17 1764.44
03-18 1769.89
03-19 1900.7
03-20 2939.6
03-21 3032.09
03-22 2495.1
03-23 2778.73
03-24 2764.27
03-25 2799.73
03-26 2781.91
03-27 2774.45
03-28 2761.09
03-29 2645.45
03-30 2517.09
03-31 2445.6
04-01 2573.0
04-02 2505.0
04-03 2460.27
04-04 2576.45
04-05 2844.18
04-06 2949.64
04-07 2944.09
04-08 2873.55
04-09 2707.0
04-10 2611.7
04-11 2542.27
04-12 2605.0
04-13 2492.0
04-14 2452.0
04-15 2371.11
04-16 2662.22
04-17 3073.89
04-18 3159.56
04-19 3070.22
04-20 3025.44
04-21 2729.0
04-22 2696.0
04-23 2774.0
04-24 2897.1
04-25 2829.11
04-26 2978.8
04-27 2955.4
04-28 2894.6
04-29 2829.6
04-30 2723.8
05-01 2637.6
05-02 2509.22
05-03 2518.33
05-04 2570.78
05-05 2803.5
05-06 2859.0
05-07 2777.1
05-08 2599.89
05-09 2756.1
05-10 2826.6
05-11 2936.3
05-12 2762.1
05-13 2560.0
05-14 2303.56
05-15 2403.22
05-16 2393.67
05-17 2393.89
05-18 2369.5
05-19 2903.1
05-20 3112.56
05-21 3082.5
05-22 3532.0
05-23 3560.0
05-24 3484.0
05-25 3490.0
05-26 3441.0
05-27 3392.0
05-28 3768.0
05-29 3998.0
05-30 3864.0
05-31 3650.0
06-01 3498.0
06-02 3440.0
06-03 3363.0
06-04 3148.0
06-05 2980.0
06-06 2958.89
06-07 3128.33
06-08 2879.7
06-09 2686.6
06-10 2974.0
06-11 2914.9
06-12 2861.8
06-13 3018.8
06-14 2724.4
06-15 2487.0
06-16 2472.1
06-17 2782.1
06-18 3065.8
06-19 3315.56
06-20 3315.67
06-21 3471.33
06-22 3670.67
06-23 3976.22
06-24 4680.22
06-25 4291.11
06-26 3814.78
06-27 4197.4
06-28 4262.2
06-29 4087.2
06-30 3771.8
07-01 3632.4
07-02 3510.5
07-03 3320.3
07-04 3370.0
07-05 3287.73
07-06 3111.82
07-07 3364.3
07-08 3464.7
07-09 3356.7
07-10 2735.55
07-11 2436.18
07-12 2556.55
07-13 2592.5
07-14 2478.27
07-15 2364.73
07-16 2162.8
07-17 2072.91
07-18 1937.09
07-19 1798.55
07-20 1855.55
07-21 1956.64
07-22 2014.73
07-23 1971.64
07-24 1912.18
07-25 1898.18
07-26 1838.27
07-27 1816.91
07-28 1749.36
07-29 2144.09
07-30 2099.09
07-31 2179.45
08-01 2265.44
08-02 1929.64
08-03 1846.55
08-04 1878.64
08-05 1797.82
08-06 1682.27
08-07 1536.18
08-08 1385.6
08-09 1296.5
08-10 1182.4
08-11 1538.09
08-12 1747.73
08-13 1987.3
08-14 1665.45
08-15 1644.4
08-16 1512.9
08-17 1450.6
08-18 1250.78
08-19 1130.0
08-20 1059.7
08-21 1134.6
08-22 1433.89
08-23 1433.27
08-24 1208.8
08-25 1183.9
08-26 1215.64
08-27 1117.45
08-28 1033.55
08-29 981.73
08-30 1191.64
08-31 1477.6
09-01 1459.82
09-02 1956.55
09-03 2166.36
09-04 2376.73
09-05 2638.09
09-06 2148.0
09-07 2087.0
09-08 1876.12
09-09 2076.75
09-10 1949.03
09-11 1887.2
09-12 1912.11
09-13 1873.06
09-14 1725.17
09-15 1442.46
09-16 1353.38
09-17 1497.52
09-18 1521.34
09-19 1587.65
09-20 1860.2
09-21 2163.61
09-22 2187.12
09-23 2040.73
09-24 2193.66
09-25 2215.7
09-26 2513.51
09-27 2603.41
09-28 2401.94
09-29 2461.06
09-30 2682.93
10-01 2006.41
10-02 2122.37
10-03 2457.87
10-04 2552.63
10-05 3052.22
10-06 3349.88
10-07 2940.1
10-08 2991.07
10-09 2196.14
10-10 2989.77
10-11 3128.74
10-12 2960.04
10-13 2799.3
10-14 2766.9
10-15 2977.56
10-16 1365.0
10-17 2342.0
10-18 2208.6
10-19 2050.1
10-20 1889.4
10-21 1089.63
10-22 992.78
10-23 1207.13
10-24 1345.91
10-25 1278.88
10-26 1572.62
10-27 1531.5
10-28 1493.6
10-29 1511.7
10-30 1483.3
10-31 1436.5
11-01 1398.8
11-02 1346.11
11-03 1377.0
11-04 1318.0
11-05 1399.7
11-06 1365.78
11-07 1407.44
11-08 1375.0
11-09 1304.3
11-10 1233.13
11-11 1209.24
11-12 1234.13
11-13 1199.91
11-14 1255.82
11-15 1222.72
11-16 1194.4
11-17 1168.3
11-18 1118.67
11-19 1089.67
11-20 1067.67
11-21 1128.5
11-22 1221.89
11-23 1123.8
11-24 1204.22
11-25 1231.67
11-26 1200.2
11-27 1279.6
11-28 1109.44
11-29 1467.7
11-30 1425.2
12-01 1405.8
12-02 1481.5
12-03 1561.9
12-04 1573.7
12-05 1556.67
12-06 1462.63
12-07 1384.67
12-08 1457.63
12-09 1390.75
12-10 1400.63
12-11 1356.13
12-12 1312.75
12-13 1248.57
12-14 970.17
12-15 1098.8
12-16 1500.0
12-17 3915.75
12-18 4839.25
12-19 4254.25
12-20 1404.0
12-21 1361.0
12-22 3290.25
12-23 3169.25
12-24 3173.75
12-25 3089.25
12-26 3007.5
12-27 2951.0
12-28 3215.0
12-29 2506.67
12-30 3571.25
12-31 4626.67

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index