Overview Realtime Historical Map View
Flood Watch
2026-08-15T10:00:00-05:00

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Illinois, including the following areas, Bureau, Carroll, Henry IL, Putnam, Rock Island and Whiteside and east central Iowa, including the following areas, Benton, Cedar, Clinton, Iowa, Jackson, Johnson, Jones, Linn, Muscatine and Scott. * WHEN...From 7 PM CDT this evening through Saturday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Rounds of rain with embedded thunderstorms will occur across the area tonight through Saturday morning. Each round of storms have the potential to produce 1 to 3 inches of rain. By the time the rain ends Saturday morning, rain totals of 2 to 6 inches are possible with locally higher amounts. Flash flooding is a risk with an increased probability of river flooding.

Cedar River Near Conesville, 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 7041.43
01-02 8251.67
01-03 7478.57
01-04 7088.57
01-05 7333.33
01-06 6686.67
01-07 6306.67
01-08 6852.0
01-09 7066.0
01-10 6896.0
01-11 6617.5
01-12 6070.0
01-13 4043.33
01-14 3652.5
01-15 3930.0
01-16 3717.5
01-17 3677.5
01-18 3124.8
01-19 3244.0
01-20 7142.25
01-21 6460.25
01-22 8755.0
01-23 16000.0
01-24 16600.0
01-25 17600.0
01-28 17200.0
01-29 16700.0
01-30 16100.0
01-31 8920.0
02-01 8935.0
02-02 6045.0
02-03 5165.0
02-04 5625.0
02-05 4790.0
02-06 4505.0
02-07 4155.0
02-08 4085.0
02-09 4350.0
02-10 4155.0
02-11 3670.0
02-12 3330.0
02-13 3055.0
02-14 3015.0
02-15 3150.0
02-16 3160.0
02-17 3215.0
02-18 3345.0
02-19 2680.0
02-20 4100.0
02-21 6010.0
02-22 6840.0
02-23 6780.0
02-24 9115.0
02-25 9325.0
02-26 8010.0
02-27 7850.0
02-28 5970.0
02-29 5746.67
03-01 5610.0
03-02 5566.67
03-03 8127.5
03-04 8807.5
03-05 8628.0
03-06 9165.0
03-07 8780.0
03-08 8050.0
03-09 6282.86
03-10 6943.0
03-11 9040.0
03-12 9908.18
03-13 9550.83
03-14 9249.23
03-15 9153.08
03-16 9240.0
03-17 8890.0
03-18 8549.23
03-19 8669.29
03-20 11047.14
03-21 11737.33
03-22 10886.43
03-23 10614.67
03-24 10040.0
03-25 10015.33
03-26 10067.33
03-27 10092.67
03-28 9847.33
03-29 9548.0
03-30 9074.0
03-31 8725.71
04-01 8920.67
04-02 8833.33
04-03 9144.67
04-04 9596.67
04-05 9705.33
04-06 10005.33
04-07 9914.67
04-08 9645.33
04-09 9262.86
04-10 9548.0
04-11 9760.67
04-12 10720.71
04-13 9660.0
04-14 9103.57
04-15 9502.31
04-16 9909.23
04-17 10652.31
04-18 11772.31
04-19 12821.54
04-20 12602.31
04-21 11800.71
04-22 11180.71
04-23 10538.57
04-24 10608.57
04-25 10589.23
04-26 11109.29
04-27 10876.43
04-28 10718.57
04-29 10895.0
04-30 11490.0
05-01 11748.0
05-02 11134.29
05-03 10947.86
05-04 10955.71
05-05 11774.67
05-06 12045.33
05-07 11944.67
05-08 11479.29
05-09 11398.67
05-10 11518.67
05-11 11716.0
05-12 11559.33
05-13 10997.33
05-14 10460.71
05-15 9863.08
05-16 9972.14
05-17 9837.86
05-18 9560.0
05-19 9706.67
05-20 10315.71
05-21 9872.67
05-22 10306.67
05-23 10535.33
05-24 10624.0
05-25 10738.67
05-26 11255.33
05-27 12104.0
05-28 12602.67
05-29 12680.67
05-30 13481.33
05-31 13840.0
06-01 13628.0
06-02 13868.0
06-03 13986.67
06-04 13800.0
06-05 13488.57
06-06 12259.29
06-07 11285.71
06-08 10485.33
06-09 10412.0
06-10 10490.0
06-11 11018.0
06-12 11208.57
06-13 11809.29
06-14 11637.14
06-15 11988.67
06-16 12586.67
06-17 12741.43
06-18 12930.71
06-19 11965.71
06-20 11425.71
06-21 11737.14
06-22 12227.14
06-23 12682.14
06-24 13245.71
06-25 14274.29
06-26 17435.71
06-27 18525.0
06-28 18857.14
06-29 17827.14
06-30 17506.43
07-01 17123.57
07-02 18335.71
07-03 16920.0
07-04 14967.86
07-05 13940.67
07-06 13348.0
07-07 13353.57
07-08 12009.29
07-09 11262.86
07-10 10147.33
07-11 9704.0
07-12 9327.33
07-13 9150.0
07-14 9171.33
07-15 8926.67
07-16 7554.29
07-17 8313.33
07-18 7584.67
07-19 6916.0
07-20 6577.33
07-21 6706.67
07-22 7207.33
07-23 7780.67
07-24 7496.67
07-25 7046.67
07-26 6866.0
07-27 6619.13
07-28 6280.0
07-29 6443.57
07-30 6583.57
07-31 6620.0
08-01 6809.85
08-02 6506.6
08-03 6542.73
08-04 6599.36
08-05 6139.33
08-06 6018.67
08-07 5898.0
08-08 5405.71
08-09 5179.29
08-10 5079.29
08-11 5090.67
08-12 5238.0
08-13 5954.0
08-14 5386.43
08-15 4807.14
08-16 4519.23
08-17 4396.92
08-18 4318.33
08-19 3952.31
08-20 3844.62
08-21 3746.15
08-22 3959.83
08-23 3953.5
08-24 3936.15
08-25 4206.77
08-26 4789.29
08-27 4534.14
08-28 4209.86
08-29 4332.71
08-30 4432.71
08-31 4837.46
09-01 4966.14
09-02 5631.0
09-03 5721.5
09-04 6081.07
09-05 6289.86
09-06 6017.62
09-07 6634.14
09-08 7003.08
09-09 7014.36
09-10 7086.43
09-11 7816.07
09-12 7384.07
09-13 6929.21
09-14 6549.29
09-15 5978.5
09-16 5476.93
09-17 5009.64
09-18 5138.79
09-19 5107.43
09-20 4902.36
09-21 5024.21
09-22 5404.38
09-23 5504.36
09-24 5922.5
09-25 6348.21
09-26 6886.86
09-27 7781.71
09-28 9941.23
09-29 11442.71
09-30 11458.0
10-01 8184.67
10-02 6448.85
10-03 5674.46
10-04 5747.69
10-05 7272.14
10-06 7294.43
10-07 7788.71
10-08 7734.57
10-09 7619.71
10-10 7310.14
10-11 7470.29
10-12 7762.71
10-13 7782.93
10-14 7390.07
10-15 7977.15
10-16 4977.69
10-17 7213.57
10-18 6790.0
10-19 6206.43
10-20 5722.86
10-21 3955.0
10-22 3585.92
10-23 3525.92
10-24 3500.77
10-25 3770.77
10-26 4942.14
10-27 4959.21
10-28 5032.71
10-29 5009.79
10-30 4987.14
10-31 4933.64
11-01 5067.0
11-02 5017.0
11-03 4981.43
11-04 4776.21
11-05 4752.86
11-06 4344.08
11-07 4322.46
11-08 4299.33
11-09 4218.77
11-10 4191.92
11-11 4216.62
11-12 4186.15
11-13 4157.69
11-14 4167.86
11-15 3692.31
11-16 3967.86
11-17 4013.15
11-18 3950.0
11-19 3918.5
11-20 3680.0
11-21 3728.08
11-22 3601.25
11-23 3571.5
11-24 3707.77
11-25 3843.62
11-26 3900.0
11-27 4124.43
11-28 3767.08
11-29 4481.14
11-30 4311.14
12-01 4369.15
12-02 4588.31
12-03 4866.38
12-04 4624.46
12-05 4431.64
12-06 4192.31
12-07 4575.85
12-08 4603.08
12-09 4391.42
12-10 4169.33
12-11 4102.67
12-12 3961.92
12-13 3735.55
12-14 3108.8
12-15 2986.9
12-16 3321.78
12-17 5354.91
12-18 5597.3
12-19 6064.89
12-20 4261.13
12-21 4500.0
12-22 7997.5
12-23 7708.75
12-24 6847.5
12-25 6346.25
12-26 5721.25
12-27 5627.5
12-28 5798.75
12-29 4272.86
12-30 6363.75
12-31 7005.71

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index