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Flood Warning
2026-10-04T06:08:00-05:00

...The Flood Warning is extended for the following rivers in Iowa... Iowa River at Marshalltown affecting Marshall County. ...The Flood Warning continues for the following rivers in Iowa... Black Hawk Creek at Hudson affecting Black Hawk County. South Skunk River near Ames US 30 affecting Polk and Story Counties. South Skunk River at Colfax affecting Polk, Jasper and Marion Counties. Des Moines River at Des Moines SE 6th St affecting Warren, Polk and Marion Counties. Raccoon River at Des Moines Fleur Dr affecting Polk County. North Raccoon River near Perry affecting Dallas County. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Black Hawk Creek at Hudson, or from the Black Hawk-Grundy County line to the Cedar River in Waterloo. * WHEN...Until Sunday morning. * IMPACTS...At 16.0 feet, Water closes Ranchero Rd in Waterloo. Some residential evacuations may occur. * ADDITIONAL DETAILS... - At 2:45 AM CDT Saturday the stage was 16.8 feet, and falling. - Forecast...The river is expected to fall below flood stage just after midnight tonight and continue falling to 8.7 feet Friday evening. - Flood stage is 15.0 feet.

Black Hawk Creek At Hudson, 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
01-01 451.33
01-02 415.0
01-03 387.33
01-04 361.33
01-05 299.75
01-06 291.5
01-07 280.0
01-08 303.25
01-09 325.0
01-10 314.25
01-11 383.5
01-12 372.5
01-13 379.0
01-14 365.0
01-15 310.0
01-16 346.0
01-17 315.0
01-18 330.0
01-19 407.5
01-20 421.0
01-21 538.0
01-22 492.0
01-23 460.0
01-24 445.0
01-25 428.0
01-29 118.0
01-30 119.0
01-31 111.0
02-01 124.0
02-02 195.0
02-03 199.0
02-04 178.0
02-05 161.0
02-06 119.0
02-07 102.0
02-08 96.0
02-09 91.0
02-18 82.0
02-19 77.0
02-20 73.0
02-21 75.0
02-22 82.0
02-23 77.0
02-24 401.0
02-25 356.0
02-26 308.0
02-27 481.0
02-28 276.0
02-29 287.5
03-01 298.5
03-02 267.5
03-03 238.0
03-04 217.75
03-05 197.6
03-06 207.5
03-07 322.67
03-08 326.6
03-09 313.3
03-10 254.43
03-11 228.51
03-12 238.07
03-13 707.15
03-14 579.56
03-15 415.08
03-16 747.01
03-17 715.48
03-18 407.36
03-19 336.97
03-20 364.94
03-21 379.21
03-22 261.35
03-23 271.14
03-24 280.27
03-25 291.53
03-26 271.64
03-27 268.71
03-28 275.0
03-29 280.25
03-30 251.85
03-31 251.36
04-01 249.97
04-02 228.23
04-03 235.53
04-04 262.81
04-05 309.19
04-06 326.48
04-07 273.75
04-08 229.17
04-09 206.43
04-10 235.11
04-11 270.44
04-12 270.16
04-13 250.15
04-14 295.35
04-15 312.01
04-16 371.67
04-17 393.28
04-18 359.72
04-19 377.96
04-20 341.68
04-21 342.7
04-22 346.79
04-23 351.02
04-24 355.53
04-25 372.58
04-26 364.37
04-27 368.5
04-28 339.71
04-29 307.91
04-30 296.82
05-01 322.02
05-02 324.02
05-03 289.93
05-04 320.18
05-05 400.0
05-06 415.0
05-07 356.93
05-08 305.77
05-09 332.36
05-10 378.29
05-11 335.6
05-12 310.79
05-13 295.86
05-14 277.62
05-15 272.07
05-16 287.29
05-17 276.64
05-18 304.27
05-19 310.07
05-20 347.43
05-21 425.0
05-22 380.29
05-23 420.4
05-24 363.8
05-25 402.33
05-26 506.93
05-27 628.67
05-28 442.43
05-29 639.4
05-30 641.0
05-31 817.33
06-01 565.6
06-02 444.93
06-03 384.71
06-04 369.57
06-05 478.77
06-06 413.79
06-07 381.93
06-08 328.0
06-09 305.68
06-10 361.49
06-11 442.89
06-12 646.97
06-13 580.97
06-14 387.13
06-15 353.56
06-16 361.71
06-17 343.01
06-18 382.33
06-19 396.55
06-20 499.16
06-21 935.91
06-22 884.38
06-23 1412.26
06-24 1003.57
06-25 658.64
06-26 594.02
06-27 512.69
06-28 469.7
06-29 517.96
06-30 597.19
07-01 1094.42
07-02 1098.29
07-03 766.26
07-04 670.87
07-05 604.6
07-06 501.37
07-07 385.36
07-08 324.46
07-09 364.76
07-10 353.93
07-11 321.84
07-12 333.53
07-13 364.34
07-14 329.54
07-15 265.39
07-16 238.16
07-17 222.1
07-18 205.41
07-19 189.95
07-20 205.77
07-21 234.15
07-22 212.44
07-23 190.55
07-24 190.45
07-25 221.93
07-26 211.05
07-27 200.43
07-28 169.14
07-29 170.91
07-30 170.27
07-31 211.64
08-01 238.85
08-02 205.7
08-03 153.87
08-04 134.6
08-05 127.38
08-06 125.14
08-07 171.13
08-08 160.96
08-09 168.72
08-10 132.74
08-11 135.65
08-12 145.78
08-13 167.06
08-14 158.77
08-15 167.69
08-16 163.84
08-17 162.54
08-18 143.35
08-19 150.36
08-20 137.94
08-21 182.84
08-22 166.15
08-23 127.27
08-24 95.14
08-25 86.39
08-26 90.72
08-27 88.56
08-28 91.56
08-29 125.82
08-30 196.53
08-31 345.56
09-01 211.68
09-02 196.3
09-03 207.23
09-04 391.55
09-05 626.85
09-06 434.32
09-07 306.19
09-08 243.47
09-09 171.82
09-10 146.74
09-11 188.64
09-12 120.21
09-13 116.99
09-14 105.79
09-15 98.35
09-16 100.8
09-17 121.6
09-18 127.68
09-19 160.75
09-20 223.17
09-21 250.33
09-22 298.71
09-23 348.76
09-24 373.29
09-25 376.45
09-26 348.96
09-27 290.36
09-28 240.36
09-29 225.61
09-30 217.0
10-01 179.29
10-02 370.85
10-03 679.44
10-04 173.49
10-05 294.32
10-06 264.9
10-07 249.69
10-08 230.7
10-09 271.78
10-10 336.14
10-11 348.81
10-12 307.59
10-13 224.89
10-14 181.72
10-15 194.09
10-16 135.78
10-17 161.34
10-18 150.24
10-19 142.11
10-20 138.54
10-21 93.02
10-22 105.72
10-23 146.19
10-24 166.03
10-25 129.98
10-26 134.4
10-27 177.76
10-28 171.74
10-29 145.9
10-30 135.72
10-31 140.71
11-01 140.59
11-02 129.02
11-03 129.32
11-04 126.89
11-05 163.14
11-06 161.76
11-07 161.58
11-08 143.52
11-09 134.75
11-10 142.59
11-11 155.71
11-12 173.77
11-13 199.32
11-14 137.02
11-15 128.83
11-16 123.53
11-17 117.83
11-18 107.89
11-19 113.29
11-20 108.9
11-21 117.02
11-22 127.27
11-23 120.51
11-24 123.74
11-25 123.61
11-26 121.04
11-27 133.76
11-28 104.33
11-29 147.03
11-30 141.51
12-01 142.91
12-02 176.15
12-03 166.09
12-04 157.19
12-05 150.63
12-06 134.25
12-07 136.25
12-08 150.07
12-09 162.23
12-10 164.86
12-11 180.17
12-12 168.19
12-13 155.82
12-14 127.01
12-15 130.27
12-16 130.72
12-17 562.0
12-18 356.0
12-19 293.83
12-20 184.5
12-21 190.0
12-22 285.8
12-23 267.4
12-24 284.2
12-25 315.2
12-26 278.8
12-27 263.12
12-28 461.32
12-29 491.45
12-30 415.4
12-31 418.25

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index