Overview Realtime Historical Map View
Heat Advisory
2026-09-20T19:00:00-05:00

* WHAT...Peak Heat Index values up to around 100 degrees this weekend. * WHERE...All of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...Until 7 PM CDT /8 PM EDT/ Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The Heat Advisory was extended thru the weekend due to the prolonged high heat conditions that have basically been ongoing for the entirety of the past week; this continues to heighten the risk of heat-related health impacts.

Big Creek Near Wadesville, In Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 202.84
01-02 464.02
01-03 116.66
01-04 413.5
01-05 204.74
01-06 69.64
01-07 54.45
01-08 44.25
01-09 47.13
01-10 195.76
01-11 326.74
01-12 655.12
01-13 847.75
01-14 813.62
01-15 211.23
01-16 91.36
01-17 52.86
01-18 205.03
01-19 516.91
01-20 266.48
01-21 72.03
01-22 86.34
01-23 105.7
01-24 249.22
01-25 88.29
01-26 189.72
01-27 142.84
01-28 167.71
01-29 84.56
01-30 65.58
01-31 414.74
02-01 113.0
02-02 78.81
02-03 109.03
02-04 61.53
02-05 135.64
02-06 134.57
02-07 152.18
02-08 351.22
02-09 405.93
02-10 126.24
02-11 164.72
02-12 284.52
02-13 238.49
02-14 73.37
02-15 71.08
02-16 496.15
02-17 370.44
02-18 573.78
02-19 117.8
02-20 176.34
02-21 135.89
02-22 205.49
02-23 303.55
02-24 209.66
02-25 504.54
02-26 102.18
02-27 149.96
02-28 81.92
02-29 48.16
03-01 329.52
03-02 119.8
03-03 478.12
03-04 720.96
03-05 192.84
03-06 121.98
03-07 129.98
03-08 327.32
03-09 247.27
03-10 220.34
03-11 325.38
03-12 255.78
03-13 168.65
03-14 351.38
03-15 341.84
03-16 206.45
03-17 93.19
03-18 419.97
03-19 370.93
03-20 338.68
03-21 94.15
03-22 56.96
03-23 361.71
03-24 99.83
03-25 626.69
03-26 139.48
03-27 111.61
03-28 280.45
03-29 148.0
03-30 180.89
03-31 307.62
04-01 174.6
04-02 211.4
04-03 375.49
04-04 480.09
04-05 245.87
04-06 685.25
04-07 167.36
04-08 264.35
04-09 72.52
04-10 58.59
04-11 128.04
04-12 282.95
04-13 75.51
04-14 474.33
04-15 87.27
04-16 108.87
04-17 109.98
04-18 55.45
04-19 243.83
04-20 357.67
04-21 101.59
04-22 92.28
04-23 62.67
04-24 63.64
04-25 141.01
04-26 290.05
04-27 200.71
04-28 301.62
04-29 376.05
04-30 532.15
05-01 460.26
05-02 150.28
05-03 641.49
05-04 250.65
05-05 324.29
05-06 307.94
05-07 115.73
05-08 88.36
05-09 85.56
05-10 57.16
05-11 121.53
05-12 258.18
05-13 144.88
05-14 53.92
05-15 52.85
05-16 41.11
05-17 85.05
05-18 402.44
05-19 153.23
05-20 190.45
05-21 66.85
05-22 148.91
05-23 62.42
05-24 39.3
05-25 48.57
05-26 47.01
05-27 134.72
05-28 52.5
05-29 33.95
05-30 328.5
05-31 114.97
06-01 164.81
06-02 234.37
06-03 91.79
06-04 89.44
06-05 42.08
06-06 118.78
06-07 180.15
06-08 40.63
06-09 72.98
06-10 63.25
06-11 73.07
06-12 80.11
06-13 149.44
06-14 101.04
06-15 35.2
06-16 21.6
06-17 409.37
06-18 76.88
06-19 164.29
06-20 432.02
06-21 269.76
06-22 166.86
06-23 129.68
06-24 146.71
06-25 165.92
06-26 75.39
06-27 172.21
06-28 403.27
06-29 334.66
06-30 152.42
07-01 338.08
07-02 321.69
07-03 54.52
07-04 50.81
07-05 257.23
07-06 180.99
07-07 101.11
07-08 167.99
07-09 588.24
07-10 168.73
07-11 180.77
07-12 27.4
07-13 37.22
07-14 40.49
07-15 13.24
07-16 126.84
07-17 206.97
07-18 72.45
07-19 61.81
07-20 273.18
07-21 83.34
07-22 152.12
07-23 87.93
07-24 22.29
07-25 9.71
07-26 29.92
07-27 42.12
07-28 83.8
07-29 322.1
07-30 104.25
07-31 40.66
08-01 151.42
08-02 147.85
08-03 81.32
08-04 71.47
08-05 14.15
08-06 42.9
08-07 17.38
08-08 45.59
08-09 5.9
08-10 43.21
08-11 7.99
08-12 4.78
08-13 3.91
08-14 36.94
08-15 24.94
08-16 8.03
08-17 41.84
08-18 94.42
08-19 43.4
08-20 6.2
08-21 17.09
08-22 136.55
08-23 26.05
08-24 12.42
08-25 3.56
08-26 2.67
08-27 15.85
08-28 6.17
08-29 13.64
08-30 3.96
08-31 1.93
09-01 2.22
09-02 46.36
09-03 121.74
09-04 5.17
09-05 3.15
09-06 36.35
09-07 7.29
09-08 36.97
09-09 442.05
09-10 83.75
09-11 15.99
09-12 4.84
09-13 4.24
09-14 1.61
09-15 5.46
09-16 1.84
09-17 1.65
09-18 263.29
09-19 88.74
09-20 28.99
09-21 3.76
09-22 14.67
09-23 8.47
09-24 37.87
09-25 22.74
09-26 541.18
09-27 132.67
09-28 10.85
09-29 4.25
09-30 4.18
10-01 2.91
10-02 4.4
10-03 5.92
10-04 7.98
10-05 4.4
10-06 23.11
10-07 240.6
10-08 52.62
10-09 6.41
10-10 3.12
10-11 11.03
10-12 5.97
10-13 58.94
10-14 36.17
10-15 21.68
10-16 3.98
10-17 4.39
10-18 2.48
10-19 6.57
10-20 9.54
10-21 6.07
10-22 17.41
10-23 3.87
10-24 8.72
10-25 3.48
10-26 10.09
10-27 105.64
10-28 16.74
10-29 81.75
10-30 364.21
10-31 56.24
11-01 39.59
11-02 123.95
11-03 13.78
11-04 10.61
11-05 6.27
11-06 39.58
11-07 12.79
11-08 6.77
11-09 5.64
11-10 13.4
11-11 4.59
11-12 4.17
11-13 24.04
11-14 6.62
11-15 10.29
11-16 66.45
11-17 18.04
11-18 138.58
11-19 48.02
11-20 11.25
11-21 9.99
11-22 27.23
11-23 125.36
11-24 64.74
11-25 37.83
11-26 104.43
11-27 30.56
11-28 120.55
11-29 128.58
11-30 142.09
12-01 397.57
12-02 118.19
12-03 37.58
12-04 27.19
12-05 144.81
12-06 543.89
12-07 128.95
12-08 40.98
12-09 30.93
12-10 118.99
12-11 77.37
12-12 24.92
12-13 22.99
12-14 33.8
12-15 182.92
12-16 209.54
12-17 109.61
12-18 91.39
12-19 70.1
12-20 41.97
12-21 36.32
12-22 1456.73
12-23 21.44
12-24 200.44
12-25 41.83
12-26 41.52
12-27 20.56
12-28 290.39
12-29 47.1
12-30 193.52
12-31 134.94

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index