Overview Realtime Historical Map View
Flood Warning
2026-09-24T11:00:00-05:00

...The Flood Warning continues for the following rivers in Iowa... Iowa River near Lone Tree affecting Washington, Johnson and Louisa Counties. English River at Kalona affecting Washington and Johnson Counties. Cedar River near Conesville affecting Muscatine and Louisa Counties. Iowa River at Oakville affecting Louisa County. Iowa River at Wapello affecting Louisa County. * WHAT...Minor flooding is occurring. * WHERE...Iowa River near Lone Tree. * WHEN...Until Thursday morning. * IMPACTS...At 16.0 feet, Flood waters affect parts of Lola Lane and Y Avenue. River Junction Access Park is closed. * ADDITIONAL DETAILS... - At 8:00 PM CDT Wednesday the stage was 16.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 PM CDT Wednesday was 16.6 feet. - Forecast...The river is expected to fall below flood stage late tonight and continue falling to 9.0 feet Wednesday, September 30. - Flood stage is 16.0 feet.

Iowa River Near Lone Tree, 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 4382.83
01-02 5537.5
01-03 4992.0
01-04 4874.4
01-05 4777.0
01-06 3944.83
01-07 3652.83
01-08 3926.2
01-09 4415.8
01-10 5547.5
01-11 5104.0
01-12 4964.0
01-13 4538.5
01-14 3732.25
01-15 4603.33
01-16 4353.33
01-17 4050.0
01-18 4805.0
01-19 4575.0
01-20 4005.0
01-21 3790.0
01-22 4005.0
01-23 3730.0
01-24 3350.0
01-25 3655.0
01-26 3770.0
01-27 4180.0
01-28 4225.0
01-29 3870.0
01-30 3910.0
01-31 4090.0
02-01 2769.5
02-02 3315.0
02-03 3865.0
02-04 4715.0
02-05 3235.0
02-06 3085.0
02-07 2920.0
02-08 2615.0
02-09 2525.0
02-10 2283.5
02-11 3540.0
02-12 15800.0
02-14 14300.0
02-15 2650.0
02-16 1780.0
02-17 1885.0
02-18 2035.0
02-19 1470.0
02-20 3050.0
02-21 3905.0
02-22 3790.0
02-23 4395.0
02-24 3400.67
02-25 3521.33
02-26 3493.33
02-27 3457.67
02-28 3459.33
02-29 3214.0
03-01 3002.0
03-02 3199.33
03-03 5090.0
03-04 3831.5
03-05 3606.8
03-06 3557.83
03-07 3207.71
03-08 2986.86
03-09 2964.29
03-10 3381.3
03-11 4625.8
03-12 5016.55
03-13 4531.33
03-14 4148.31
03-15 4303.31
03-16 4445.92
03-17 4358.77
03-18 4012.08
03-19 3922.29
03-20 3892.85
03-21 4787.07
03-22 3869.43
03-23 4015.2
03-24 4059.53
03-25 4024.07
03-26 3929.4
03-27 3913.73
03-28 4022.33
03-29 4307.2
03-30 4010.4
03-31 3841.43
04-01 3819.87
04-02 3699.4
04-03 4083.33
04-04 4143.33
04-05 4082.0
04-06 4198.0
04-07 4355.33
04-08 4165.33
04-09 3577.14
04-10 4114.67
04-11 4649.33
04-12 5122.5
04-13 4641.71
04-14 4445.0
04-15 4943.08
04-16 5523.85
04-17 5398.46
04-18 5899.23
04-19 7515.38
04-20 7652.31
04-21 5730.71
04-22 5121.43
04-23 4640.0
04-24 4825.71
04-25 4849.23
04-26 4950.0
04-27 5006.43
04-28 4861.43
04-29 4878.57
04-30 5390.71
05-01 5540.0
05-02 4761.43
05-03 4535.71
05-04 4775.71
05-05 5562.0
05-06 5618.0
05-07 5454.67
05-08 5087.14
05-09 5194.0
05-10 5122.0
05-11 5142.0
05-12 4762.67
05-13 4320.0
05-14 4007.86
05-15 4105.71
05-16 4022.86
05-17 3934.29
05-18 4641.33
05-19 4990.0
05-20 5625.71
05-21 5071.33
05-22 5001.33
05-23 5031.33
05-24 5189.33
05-25 5024.0
05-26 5196.0
05-27 5605.33
05-28 5897.33
05-29 6587.33
05-30 7448.67
05-31 7142.0
06-01 6592.67
06-02 6076.0
06-03 5780.0
06-04 5710.0
06-05 5781.43
06-06 5731.43
06-07 5635.71
06-08 5406.67
06-09 5582.67
06-10 6517.33
06-11 6456.67
06-12 6185.0
06-13 6178.57
06-14 5752.86
06-15 5779.47
06-16 5930.53
06-17 5633.0
06-18 6139.0
06-19 6073.71
06-20 5973.43
06-21 6535.79
06-22 6726.64
06-23 7054.14
06-24 6901.5
06-25 6365.64
06-26 6368.36
06-27 6149.79
06-28 5991.29
06-29 5826.07
06-30 6216.43
07-01 6572.57
07-02 7757.14
07-03 8323.29
07-04 8363.29
07-05 7255.13
07-06 6891.2
07-07 7268.36
07-08 6775.86
07-09 6334.07
07-10 5701.87
07-11 5513.67
07-12 5459.47
07-13 5647.5
07-14 5162.73
07-15 4861.27
07-16 4613.23
07-17 4616.13
07-18 4399.87
07-19 4048.67
07-20 3936.6
07-21 3859.6
07-22 3989.8
07-23 3842.8
07-24 3530.4
07-25 3374.33
07-26 3219.8
07-27 3144.13
07-28 3032.33
07-29 2839.27
07-30 2932.73
07-31 3163.33
08-01 3377.62
08-02 2750.2
08-03 2894.53
08-04 2620.87
08-05 2297.13
08-06 2420.6
08-07 2149.47
08-08 2019.93
08-09 2039.93
08-10 1990.93
08-11 2664.93
08-12 2708.2
08-13 3510.8
08-14 2776.47
08-15 2660.67
08-16 2639.07
08-17 2514.14
08-18 2208.08
08-19 1932.57
08-20 1661.64
08-21 1835.07
08-22 1758.31
08-23 1600.0
08-24 1544.07
08-25 1542.36
08-26 1819.4
08-27 1624.33
08-28 1495.33
08-29 1515.27
08-30 1627.8
08-31 1526.93
09-01 1403.67
09-02 1642.33
09-03 2150.27
09-04 2065.47
09-05 2214.73
09-06 2167.79
09-07 2475.0
09-08 2322.92
09-09 2279.0
09-10 2119.33
09-11 2835.73
09-12 2542.2
09-13 2263.4
09-14 2476.33
09-15 2133.53
09-16 2317.73
09-17 2121.87
09-18 2038.13
09-19 2439.64
09-20 2974.67
09-21 3399.6
09-22 3132.36
09-23 3266.73
09-24 3285.8
09-25 2423.21
09-26 2212.14
09-27 1791.14
09-28 1511.5
09-29 1319.71
09-30 1640.58
10-01 1109.0
10-02 1028.83
10-03 1142.5
10-04 1370.0
10-05 2333.36
10-06 2562.71
10-07 2949.36
10-08 3623.64
10-09 3950.21
10-10 3570.71
10-11 3904.0
10-12 3862.46
10-13 3406.77
10-14 2985.57
10-15 3449.54
10-16 2309.62
10-17 3258.38
10-18 3102.08
10-19 2938.0
10-20 2838.54
10-21 1901.09
10-22 2744.69
10-23 2656.23
10-24 2666.15
10-25 2550.71
10-26 2784.71
10-27 2693.07
10-28 2556.21
10-29 2588.64
10-30 2601.93
10-31 2527.64
11-01 2468.43
11-02 2278.92
11-03 2345.36
11-04 2261.5
11-05 2355.07
11-06 2336.92
11-07 2091.85
11-08 1948.08
11-09 1866.69
11-10 1837.38
11-11 1815.23
11-12 1934.23
11-13 1993.08
11-14 1962.64
11-15 1860.77
11-16 1807.5
11-17 1887.64
11-18 1675.62
11-19 1695.46
11-20 1620.0
11-21 1765.79
11-22 1822.08
11-23 1656.29
11-24 1760.31
11-25 1828.15
11-26 1848.0
11-27 2207.14
11-28 1521.15
11-29 2550.29
11-30 2309.79
12-01 2100.36
12-02 2487.57
12-03 2506.57
12-04 2257.79
12-05 2155.21
12-06 2107.33
12-07 2280.58
12-08 2229.33
12-09 2168.33
12-10 2030.08
12-11 2027.09
12-12 1847.5
12-13 1861.55
12-14 1671.8
12-15 1724.6
12-16 1762.6
12-17 3171.91
12-18 2648.64
12-19 2423.0
12-20 1588.0
12-21 1605.56
12-22 2707.2
12-23 2705.7
12-24 2726.1
12-25 2806.0
12-26 2926.8
12-27 2892.22
12-28 3165.0
12-29 2652.14
12-30 3743.0
12-31 4087.71

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index