Overview Realtime Historical Map View
Flood Warning
2026-10-08T21:00:00-05:00

...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 near Lone Tree affecting Johnson, Louisa and Washington Counties. English River at Kalona affecting Johnson and Washington Counties. ...The Flood Warning is extended for the following rivers in Iowa... Iowa River at Marengo affecting Iowa and Benton Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Iowa River at Wapello. * WHEN...Until Thursday evening. * IMPACTS...At 22.0 feet, Water affects residences near the U.S. Highway 61 bridge. * ADDITIONAL DETAILS... - At 8:00 PM CDT Friday the stage was 22.5 feet. - Forecast...The river is expected to rise to a crest of 23.1 feet early Sunday afternoon. It will then fall below flood stage early Thursday afternoon. - Flood stage is 21.0 feet.

Iowa River At Wapello, Ia Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 11173.33
01-02 13096.0
01-03 11790.0
01-04 12316.67
01-05 11998.33
01-06 11313.33
01-07 10646.67
01-08 9790.0
01-09 9968.33
01-10 10595.0
01-11 10561.67
01-12 10401.67
01-13 9599.0
01-14 8733.33
01-15 8045.0
01-16 7875.0
01-17 7660.0
01-18 8725.0
01-19 6702.0
01-20 7625.0
01-21 6738.0
01-22 6534.0
01-23 6346.0
01-24 6212.0
01-25 6248.0
01-26 4607.5
01-27 4652.5
01-28 6672.0
01-29 7616.67
01-30 7746.67
01-31 8030.0
02-01 8433.33
02-02 7905.0
02-03 9466.67
02-04 9373.33
02-05 9373.33
02-06 7030.0
02-07 7733.33
02-08 7756.67
02-09 7223.33
02-10 7633.33
02-11 9105.0
02-12 6896.67
02-13 6290.0
02-14 5410.0
02-15 5603.33
02-16 6510.0
02-17 5682.5
02-18 5757.5
02-19 4020.0
02-20 5657.5
02-21 6737.5
02-22 7960.0
02-23 7837.5
02-24 8470.0
02-25 9392.5
02-26 9147.5
02-27 8762.5
02-28 8705.0
02-29 10360.0
03-01 8445.0
03-02 10582.0
03-03 11122.0
03-04 11488.0
03-05 11401.67
03-06 11964.29
03-07 11545.0
03-08 11122.5
03-09 9418.89
03-10 9499.0
03-11 15483.0
03-12 16656.0
03-13 15769.09
03-14 15242.5
03-15 13606.92
03-16 13925.38
03-17 13603.85
03-18 13131.54
03-19 12998.57
03-20 16161.43
03-21 16627.33
03-22 15118.57
03-23 15314.67
03-24 14390.67
03-25 14204.67
03-26 13955.33
03-27 13928.67
03-28 14000.67
03-29 13866.67
03-30 13540.67
03-31 12413.57
04-01 12486.67
04-02 12562.67
04-03 13160.67
04-04 13736.0
04-05 13602.0
04-06 13714.67
04-07 14056.0
04-08 14110.67
04-09 13379.29
04-10 13556.0
04-11 14088.67
04-12 16143.57
04-13 15372.86
04-14 14050.0
04-15 13784.62
04-16 14422.31
04-17 15193.08
04-18 15998.46
04-19 18041.54
04-20 21372.31
04-21 19294.29
04-22 17447.14
04-23 16311.43
04-24 15443.57
04-25 15316.92
04-26 15860.0
04-27 15893.57
04-28 15749.29
04-29 15630.71
04-30 15976.43
05-01 17369.33
05-02 17066.43
05-03 16440.0
05-04 16227.14
05-05 18329.33
05-06 18026.0
05-07 17502.67
05-08 16775.71
05-09 16694.67
05-10 16584.0
05-11 16751.33
05-12 16495.33
05-13 15919.33
05-14 14974.29
05-15 14886.43
05-16 14925.0
05-17 14442.86
05-18 14137.33
05-19 14669.33
05-20 15712.86
05-21 15538.0
05-22 15337.86
05-23 15829.33
05-24 15636.67
05-25 15826.0
05-26 15932.0
05-27 17190.67
05-28 18729.33
05-29 19156.67
05-30 20535.33
05-31 21468.0
06-01 21294.0
06-02 20568.0
06-03 20541.33
06-04 20602.0
06-05 20900.0
06-06 19622.86
06-07 17770.0
06-08 16181.33
06-09 15903.33
06-10 16282.0
06-11 17377.33
06-12 18045.71
06-13 17840.71
06-14 17827.86
06-15 18284.67
06-16 17385.0
06-17 17492.86
06-18 18889.33
06-19 18838.57
06-20 18100.0
06-21 17937.14
06-22 18725.0
06-23 19387.86
06-24 19894.29
06-25 20049.29
06-26 21639.29
06-27 23293.57
06-28 24686.43
06-29 24032.86
06-30 23315.71
07-01 23255.0
07-02 23547.86
07-03 25408.57
07-04 24190.71
07-05 21999.33
07-06 20837.33
07-07 20936.43
07-08 20148.57
07-09 18237.14
07-10 16952.0
07-11 15951.33
07-12 15606.67
07-13 15246.43
07-14 14930.67
07-15 14427.33
07-16 12927.69
07-17 13750.0
07-18 13113.33
07-19 11733.33
07-20 10957.33
07-21 11054.67
07-22 10867.33
07-23 11410.0
07-24 11266.0
07-25 10950.67
07-26 10796.67
07-27 10876.67
07-28 10706.0
07-29 10048.67
07-30 9783.33
07-31 9938.0
08-01 10578.46
08-02 9730.0
08-03 9710.0
08-04 9511.33
08-05 8880.0
08-06 8640.0
08-07 8500.67
08-08 8023.57
08-09 7441.43
08-10 7151.43
08-11 7696.67
08-12 8002.0
08-13 8522.0
08-14 9566.67
08-15 9329.33
08-16 8850.71
08-17 8120.0
08-18 7629.23
08-19 6963.57
08-20 6378.57
08-21 6154.29
08-22 6240.77
08-23 5913.33
08-24 5623.57
08-25 5781.43
08-26 6850.0
08-27 6776.0
08-28 6250.0
08-29 5960.67
08-30 6261.33
08-31 6440.71
09-01 6277.33
09-02 6660.67
09-03 7280.0
09-04 7698.0
09-05 8228.0
09-06 7509.29
09-07 8062.67
09-08 8768.57
09-09 9246.67
09-10 9282.0
09-11 9915.33
09-12 10610.67
09-13 9857.33
09-14 9402.67
09-15 8929.33
09-16 8424.13
09-17 8110.27
09-18 7613.33
09-19 7652.67
09-20 8131.53
09-21 9512.4
09-22 10138.93
09-23 10761.87
09-24 10915.27
09-25 10633.27
09-26 10377.93
09-27 10950.6
09-28 11459.4
09-29 12838.27
09-30 13924.64
10-01 11455.69
10-02 10710.36
10-03 7240.38
10-04 7245.0
10-05 9532.5
10-06 9596.29
10-07 10264.14
10-08 11402.64
10-09 11887.0
10-10 11826.93
10-11 11663.36
10-12 11696.79
10-13 11629.57
10-14 11235.0
10-15 12016.92
10-16 7940.0
10-17 11646.15
10-18 11169.23
10-19 9791.43
10-20 9007.14
10-21 5961.67
10-22 7999.29
10-23 7745.71
10-24 7433.57
10-25 7452.14
10-26 7537.86
10-27 7707.86
10-28 7606.43
10-29 7478.57
10-30 7470.0
10-31 7454.29
11-01 7722.31
11-02 7565.83
11-03 7608.46
11-04 7627.69
11-05 7594.62
11-06 6973.85
11-07 6926.92
11-08 6680.0
11-09 6467.69
11-10 6330.0
11-11 6252.31
11-12 6268.46
11-13 6383.08
11-14 6474.29
11-15 6318.57
11-16 6176.43
11-17 6060.0
11-18 5869.23
11-19 5666.92
11-20 5873.33
11-21 5923.57
11-22 6066.15
11-23 5772.86
11-24 6321.67
11-25 6260.0
11-26 6191.54
11-27 6413.08
11-28 5788.33
11-29 7356.43
11-30 7137.14
12-01 6825.71
12-02 6729.29
12-03 6958.57
12-04 7085.0
12-05 6933.57
12-06 6904.17
12-07 7080.0
12-08 7280.91
12-09 7060.91
12-10 6849.09
12-11 6590.0
12-12 6242.73
12-13 6176.36
12-14 4999.09
12-15 4829.09
12-16 4930.0
12-17 7681.0
12-18 7942.0
12-19 7726.0
12-20 4308.89
12-21 4578.75
12-22 8614.44
12-23 8684.44
12-24 8590.0
12-25 8356.67
12-26 7984.44
12-27 8523.75
12-28 8446.25
12-29 5733.33
12-30 10032.86
12-31 11191.67

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index