Station list
Available data
ILLINOIS RIVER BASIN
05579500 LAKE FORK NEAR CORNLAND, IL
LOCATION.--Lat 39°57'00", long 89°23'10", in NW1/4 SW1/4 sec.1, T.17 N., R.3 W., Logan County, Hydrologic Unit 07130009,
on right bank at downstream side of bridge on State Highway 54, 100 ft upstream from a railroad bridge, 2.0 mi northeast of
Cornland, 8 mi downstream from Jones Fork, and at mile 12.9.
DRAINAGE AREA.--214 mi2.
PERIOD OF RECORD.--January 1948 to current year.
REVISED RECORDS.--WDR IL-75-1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 555.06 ft above sea level. Prior to Sept. 6, 1973, nonrecording gage at same site
and datum.
REMARKS.--Records good except those for Feb. 1 to June 30, which are fair, and those for estimated daily discharges, which are poor.
Gage-height telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood in May 1943 reached a stage of 23.4 ft, from floodmarks, discharge
29,000 ft3/s, by contracted-opening measurement of peak flow.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
|
|---|
| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP
|
|---|
|
|
| 1 | 10 | 12 | 21 | e8.3 | 319 | 126 | 103 | 399 | 162 | 162 | 18 | 15
|
| 2 | 10 | 12 | 20 | e10 | 329 | 127 | 96 | 356 | 626 | 148 | 17 | 14
|
| 3 | 9.7 | 18 | 20 | e13 | 311 | 163 | 115 | 322 | 389 | 133 | 18 | 13
|
| 4 | 10 | 25 | 20 | e11 | 276 | 154 | 220 | 300 | 381 | 119 | 18 | 13
|
| 5 | 10 | 28 | 20 | e9.2 | 228 | 152 | 192 | 305 | 750 | 106 | 17 | 12
|
|
|
| 6 | 11 | 24 | 21 | e10 | 220 | 164 | 178 | 445 | 449 | 97 | 17 | 11
|
| 7 | 11 | 20 | 21 | e12 | 548 | 157 | 149 | 455 | 335 | 87 | 16 | 10
|
| 8 | 9.5 | 20 | 20 | e11 | 979 | 161 | 144 | 368 | 285 | 80 | 16 | 10
|
| 9 | 9.3 | 20 | 19 | e10 | 728 | 178 | 185 | 309 | 249 | 75 | 15 | 10
|
| 10 | 9.5 | 34 | 18 | e10 | 589 | 157 | 162 | 279 | 221 | 66 | 15 | 9.4
|
|
|
| 11 | 9.7 | 59 | 17 | e9.7 | 504 | 138 | 152 | 255 | 212 | 59 | 14 | 9.3
|
| 12 | 10 | 50 | 17 | e9.4 | 436 | 167 | 130 | 251 | 617 | 55 | 16 | 9.3
|
| 13 | 7.3 | 41 | 16 | e9.1 | 368 | 245 | 120 | 1100 | 1130 | 52 | 1010 | 11
|
| 14 | 8.0 | 38 | 14 | e8.9 | 323 | 253 | 117 | 1080 | 1620 | 47 | 553 | 8.8
|
| 15 | 8.1 | 36 | 13 | e8.7 | 302 | 245 | 198 | 682 | 1390 | 43 | 165 | 9.0
|
|
|
| 16 | 8.5 | 33 | 12 | e8.5 | 282 | 242 | 741 | 540 | 659 | 40 | 94 | 8.9
|
| 17 | 9.3 | 30 | 11 | e8.4 | 258 | 242 | 942 | 478 | 495 | 37 | 62 | 8.7
|
| 18 | 10 | 25 | 10 | e10 | 239 | 198 | 818 | 419 | 407 | 35 | 46 | 9.3
|
| 19 | 10 | 25 | 11 | e14 | 218 | 167 | 650 | 351 | 356 | 34 | 40 | 10
|
| 20 | 10 | 26 | 9.3 | e19 | 199 | 161 | 539 | 314 | 315 | 32 | 34 | 10
|
|
|
| 21 | 9.6 | 24 | 8.7 | e25 | 179 | 160 | 540 | 291 | 281 | 32 | 30 | 8.9
|
| 22 | 9.3 | 23 | 13 | e250 | 166 | 143 | 524 | 270 | 274 | 29 | 27 | 8.7
|
| 23 | 9.3 | 25 | 9.3 | e800 | 169 | 136 | 436 | 250 | 251 | 26 | 27 | 9.0
|
| 24 | 9.9 | 23 | 8.2 | 892 | 157 | 131 | 370 | 229 | 274 | 25 | 42 | 9.5
|
| 25 | 10 | 23 | 7.5 | 675 | 152 | 120 | 342 | 206 | 416 | 24 | 32 | 9.5
|
|
|
| 26 | 10 | 23 | 7.2 | 531 | 139 | 114 | 320 | 191 | 325 | 22 | 27 | 8.4
|
| 27 | 11 | 23 | 7.7 | 509 | 146 | 112 | 330 | 170 | 246 | 29 | 23 | 7.1
|
| 28 | 12 | 22 | 8.3 | 434 | 141 | e110 | 631 | 161 | 221 | 26 | 21 | 8.3
|
| 29 | 12 | 21 | 8.0 | 344 | --- | e106 | 570 | 153 | 194 | 33 | 18 | 14
|
| 30 | 13 | 22 | e7.7 | 302 | --- | e103 | 460 | 147 | 170 | 22 | 17 | 11
|
|
|
| 31 | 13 | --- | e7.4 | 284 | --- | 101 | --- | 142 | --- | 19 | 15 | ---
|
| TOTAL | 310.0 | 805 | 423.3 | 5256.2 | 8905 | 4933 | 10474 | 11218 | 13700 | 1794 | 2480 | 306.1
|
| MEAN | 10.0 | 26.8 | 13.7 | 170 | 318 | 159 | 349 | 362 | 457 | 57.9 | 80.0 | 10.2
|
| MAX | 13 | 59 | 21 | 892 | 979 | 253 | 942 | 1100 | 1620 | 162 | 1010 | 15
|
| MIN | 7.3 | 12 | 7.2 | 8.3 | 139 | 101 | 96 | 142 | 162 | 19 | 14 | 7.1
|
| CFSM | .05 | .13 | .06 | .79 | 1.49 | .74 | 1.63 | 1.69 | 2.13 | .27 | .37 | .05
|
| IN. | .05 | .14 | .07 | .91 | 1.55 | .86 | 1.82 | 1.95 | 2.38 | .31 | .43 | .05
|
e Estimated
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 1999, BY WATER YEAR (WY)
|
|---|
| MEAN | 64.3 | 79.6 | 145 | 151 | 213 | 263 | 293 | 298 | 236 | 132 | 74.6 | 43.0
|
| MAX | 680 | 1009 | 1260 | 988 | 712 | 1116 | 1016 | 1024 | 1099 | 772 | 887 | 546
|
| (WY) | 1978 | 1986 | 1983 | 1950 | 1959 | 1979 | 1979 | 1995 | 1974 | 1981 | 1981 | 1993
|
| MIN | 2.02 | 2.06 | 2.46 | 4.01 | 5.02 | 6.56 | 16.7 | 7.27 | 17.0 | 7.20 | 3.84 | 1.57
|
| (WY) | 1955 | 1955 | 1964 | 1977 | 1963 | 1954 | 1954 | 1954 | 1963 | 1954 | 1988 | 1954
|
| SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1948 - 1999 |
|---|
| ANNUAL TOTAL | 81874.3 | | 60604.6 | | |
|
| ANNUAL MEAN | 224 | | 166 | | 166 |
|
| HIGHEST ANNUAL MEAN | | | | | 372 | 1993
|
| LOWEST ANNUAL MEAN | | | | | 8.89 | 1954
|
| HIGHEST DAILY MEAN | 1660 | Jun 19 | 1620 | Jun 14 | 7000 | Dec 4 1982
|
| LOWEST DAILY MEAN | 7.2 | Dec 26 | 7.1 | Sep 27 | .77 | Sep 16 1988
|
| ANNUAL SEVEN-DAY MINIMUM | 7.7 | Dec 25 | 7.7 | Dec 25 | .96 | Sep 7 1988
|
| INSTANTANEOUS PEAK FLOW | | | 1710 | Jun 14 | 8930 | Apr 12 1979
|
| INSTANTANEOUS PEAK STAGE | | | 15.20 | Jun 14 | 23.11 | Apr 12 1979
|
| INSTANTANEOUS LOW FLOW | | | 1.8 A | Dec 11 | |
|
| ANNUAL RUNOFF (CFSM) | 1.05 | | .78 | | .78 |
|
| ANNUAL RUNOFF (INCHES) | 14.23 | | 10.54 | | 10.55 |
|
| 10 PERCENT EXCEEDS | 582 | | 451 | | 401 |
|
| 50 PERCENT EXCEEDS | 112 | | 43 | | 62 |
|
| 90 PERCENT EXCEEDS | 10 | | 9.3 | | 6.7 |
|
A - Result of freeze up.