Overview Realtime Historical Map View
Flood Watch
2026-09-17T10:00:00-05:00

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest Illinois, including the following counties, Carroll, Rock Island and Whiteside and east central Iowa, including the following counties, Benton, Cedar, Clinton, Iowa, Jackson, Johnson, Jones, Linn, Muscatine and Scott. * WHEN...Until 10 AM CDT this 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... - A saturated atmosphere will result in rainfall amounts of 1 to 3 inches. Rainfall rates of 1 to 2 inches per hour at times are possible. Localized rainfall amounts of 3 to 5 inches could occur (10-20% chance) near the Highway 30 corridor.

North Fork Maquoketa River Near Fulton, 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
01-01 707.67
01-02 643.0
01-03 613.0
01-04 594.67
01-05 575.33
01-06 566.67
01-07 559.0
01-08 978.67
01-09 825.33
01-10 624.75
01-11 570.67
01-12 624.0
01-13 700.67
01-14 762.33
01-15 793.67
01-16 742.33
01-17 638.33
01-18 609.0
01-19 615.0
01-20 654.5
01-21 663.0
01-22 864.5
01-23 999.0
01-24 950.5
01-25 881.5
01-26 771.0
01-27 728.0
01-28 818.0
01-29 798.0
01-30 754.0
01-31 457.0
02-01 514.0
02-02 524.5
02-03 562.5
02-04 538.5
02-05 453.0
02-06 424.0
02-07 413.5
02-08 552.0
02-09 473.33
02-10 453.5
02-11 1380.0
02-12 1097.5
02-16 345.0
02-17 332.0
02-18 347.0
02-19 374.0
02-20 358.0
02-21 347.0
02-22 350.0
02-23 361.0
02-24 377.0
02-25 457.5
02-26 414.0
02-27 390.0
02-28 391.0
02-29 400.5
03-01 696.5
03-02 528.5
03-03 590.33
03-04 668.0
03-05 656.2
03-06 561.0
03-07 449.57
03-08 416.14
03-09 409.13
03-10 584.8
03-11 1723.1
03-12 1031.73
03-13 650.33
03-14 563.33
03-15 1822.79
03-16 742.29
03-17 684.07
03-18 515.14
03-19 468.53
03-20 514.64
03-21 536.2
03-22 419.71
03-23 455.73
03-24 436.53
03-25 445.2
03-26 428.27
03-27 407.0
03-28 407.4
03-29 410.27
03-30 412.2
03-31 396.86
04-01 401.0
04-02 392.87
04-03 494.93
04-04 485.43
04-05 478.29
04-06 455.0
04-07 437.47
04-08 423.87
04-09 405.07
04-10 444.53
04-11 467.73
04-12 456.21
04-13 438.86
04-14 469.71
04-15 718.31
04-16 691.62
04-17 692.75
04-18 743.25
04-19 960.33
04-20 605.83
04-21 501.0
04-22 476.21
04-23 469.5
04-24 466.5
04-25 589.85
04-26 464.43
04-27 429.71
04-28 430.86
04-29 444.29
04-30 464.86
05-01 472.6
05-02 464.29
05-03 443.86
05-04 459.36
05-05 459.64
05-06 452.07
05-07 426.53
05-08 412.14
05-09 411.8
05-10 449.36
05-11 442.93
05-12 416.71
05-13 421.71
05-14 403.69
05-15 448.64
05-16 421.64
05-17 403.71
05-18 392.8
05-19 396.43
05-20 392.07
05-21 384.93
05-22 384.53
05-23 377.73
05-24 383.79
05-25 442.87
05-26 466.0
05-27 496.0
05-28 460.71
05-29 540.07
05-30 495.57
05-31 460.5
06-01 443.87
06-02 420.27
06-03 406.33
06-04 401.53
06-05 417.14
06-06 480.14
06-07 461.21
06-08 425.53
06-09 449.0
06-10 490.8
06-11 734.6
06-12 1192.43
06-13 665.43
06-14 529.69
06-15 678.29
06-16 765.73
06-17 628.8
06-18 663.73
06-19 523.57
06-20 684.79
06-21 701.86
06-22 655.71
06-23 706.14
06-24 719.57
06-25 633.29
06-26 664.36
06-27 841.07
06-28 587.71
06-29 600.57
06-30 647.15
07-01 1222.46
07-02 825.23
07-03 585.64
07-04 636.57
07-05 553.4
07-06 499.93
07-07 491.79
07-08 457.93
07-09 450.07
07-10 479.2
07-11 526.8
07-12 504.07
07-13 725.21
07-14 526.13
07-15 515.93
07-16 450.4
07-17 416.27
07-18 394.87
07-19 402.5
07-20 438.87
07-21 431.73
07-22 425.8
07-23 604.43
07-24 652.87
07-25 474.2
07-26 422.0
07-27 420.0
07-28 389.33
07-29 1402.4
07-30 970.36
07-31 450.6
08-01 488.46
08-02 428.73
08-03 408.0
08-04 379.93
08-05 409.21
08-06 364.93
08-07 505.2
08-08 437.93
08-09 395.38
08-10 380.46
08-11 818.93
08-12 575.93
08-13 504.5
08-14 448.79
08-15 392.57
08-16 366.71
08-17 375.86
08-18 376.38
08-19 398.36
08-20 359.5
08-21 427.79
08-22 406.92
08-23 355.13
08-24 365.54
08-25 341.86
08-26 341.07
08-27 326.47
08-28 322.4
08-29 376.27
08-30 328.93
08-31 313.5
09-01 305.93
09-02 467.07
09-03 414.8
09-04 601.2
09-05 509.67
09-06 519.79
09-07 480.6
09-08 416.93
09-09 385.0
09-10 364.07
09-11 360.53
09-12 393.27
09-13 548.27
09-14 427.21
09-15 363.07
09-16 357.2
09-17 423.6
09-18 387.69
09-19 393.46
09-20 450.07
09-21 559.71
09-22 441.31
09-23 426.36
09-24 658.14
09-25 434.79
09-26 422.86
09-27 415.43
09-28 374.71
09-29 362.5
09-30 373.46
10-01 326.17
10-02 371.62
10-03 978.31
10-04 553.38
10-05 501.36
10-06 741.21
10-07 588.86
10-08 538.64
10-09 668.0
10-10 496.93
10-11 901.79
10-12 480.29
10-13 425.36
10-14 411.93
10-15 474.08
10-16 363.23
10-17 385.5
10-18 355.85
10-19 349.5
10-20 338.71
10-21 285.69
10-22 286.31
10-23 309.23
10-24 360.42
10-25 332.67
10-26 325.75
10-27 328.77
10-28 332.5
10-29 312.46
10-30 307.15
10-31 322.07
11-01 317.5
11-02 311.15
11-03 333.14
11-04 318.79
11-05 368.86
11-06 363.38
11-07 342.77
11-08 319.77
11-09 311.08
11-10 344.31
11-11 350.85
11-12 346.08
11-13 329.15
11-14 345.77
11-15 340.46
11-16 331.23
11-17 314.43
11-18 313.08
11-19 322.92
11-20 331.64
11-21 322.77
11-22 348.25
11-23 328.46
11-24 330.5
11-25 328.33
11-26 330.46
11-27 379.08
11-28 364.3
11-29 431.09
11-30 386.58
12-01 375.5
12-02 381.31
12-03 363.62
12-04 363.58
12-05 372.0
12-06 370.0
12-07 347.5
12-08 339.1
12-09 342.1
12-10 340.8
12-11 355.11
12-12 355.78
12-13 342.0
12-14 314.78
12-15 321.22
12-16 367.0
12-17 477.63
12-18 436.75
12-19 427.86
12-20 378.6
12-21 371.6
12-22 440.0
12-23 429.67
12-24 436.5
12-25 435.67
12-26 425.67
12-27 421.17
12-28 485.5
12-29 479.2
12-30 655.0
12-31 655.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index