LOCATION.-- Lat 42°36'39", long 88°13'33", in NW 1/4 NW 1/4 sec.26, T.2 N., R.19 E., Kenosha County, Hydrologic Unit 07120006, on right bank 40 ft downstream from bridge on County Trunk Highway JB, 2.2 mi north of New Munster, and 17.0 mi upstream from Fox Chain of Lakes. |
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DRAINAGE AREA.-- 811 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1939 to current year. Prior to October 1993, published as "at Wilmot" under station number 05546500. |
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REVISED RECORDS.-- WSP 1308: 1943(M), 1945(M). WDR WI-67-1: Drainage area. WDR WI-92-1: 1991. |
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GAGE.-- Water-stage recorder, phone telemeter, and U.S. Corps of Engineers satellite telemeter. Datum of gage is 735.72 ft above NGVD of 1929 (Racine County Surveyor bench mark). Prior to Sept. 2, 1965, nonrecording gage at bridge 400 ft above dam in Wilmot 11 mi downstream at datum 0.50 ft lower, and recording gage Sept. 2, 1965 to Sept. 30, 1993, recording gage 100 ft downstream from bridge at the lower datum. Removal of dam due to damage was completed by Sept. 15, 1992. |
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REMARKS.--Occasional regulation from several dams upstream from gage. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 7,520 ft3/s, March 31, 1960, gage height, 9.25 ft, from graph based on gage readings, site and datum then in use; maximum gage height, 14.10 ft, February 21, 1994, ice affected; no flow, October 26, 1945 and August 10, 1990. |
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REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are fair. |
Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 99 | 167 | 282 | 412 | e180 | e470 | 1250 | 715 | 3020 | 958 | 268 | 342 |
2 | 115 | 268 | 236 | 378 | e180 | e560 | 1100 | 582 | 2900 | 858 | 263 | 270 |
3 | 106 | 438 | 257 | 313 | e180 | e680 | 978 | 446 | 2700 | 650 | 256 | 246 |
4 | 105 | 701 | 254 | e300 | e180 | e740 | 906 | 318 | 2460 | 779 | 401 | 231 |
5 | 100 | 785 | 260 | e290 | e180 | 1260 | 811 | 356 | 2150 | 945 | 525 | 232 |
6 | 99 | 741 | 259 | e260 | e180 | 1760 | 654 | 339 | 1820 | 835 | 435 | 225 |
7 | 100 | 612 | 256 | e240 | e180 | 1750 | 536 | 410 | 1650 | 726 | 491 | 227 |
8 | 118 | 563 | 250 | e240 | e170 | 1630 | 639 | 367 | 1450 | 774 | 490 | 238 |
9 | 115 | 486 | 260 | e240 | e170 | 1490 | 667 | 560 | 1420 | 771 | 431 | 230 |
10 | 112 | 422 | 595 | e230 | e170 | 1340 | 582 | 1050 | 1370 | 825 | 267 | 205 |
11 | 91 | 320 | 1250 | e220 | e170 | 1190 | 503 | 1020 | 1430 | 751 | 298 | 175 |
12 | 104 | 357 | 890 | e220 | e170 | 1050 | 502 | 993 | 1490 | 691 | 297 | 197 |
13 | 109 | 317 | 752 | e220 | e160 | 899 | 511 | 1260 | 1480 | 718 | 269 | 205 |
14 | 144 | 309 | 691 | e220 | e160 | 804 | 471 | 2050 | 1390 | 636 | 274 | 184 |
15 | 152 | 230 | 644 | e220 | e160 | 726 | 369 | 2740 | 1400 | 633 | 271 | 179 |
16 | 110 | 283 | 710 | e210 | e160 | 710 | 330 | 2750 | 1390 | 541 | 248 | 188 |
17 | 147 | 255 | 665 | e210 | e160 | 676 | 348 | 2460 | 1840 | 430 | 270 | 197 |
18 | 125 | 371 | 510 | e210 | e160 | 558 | 406 | 2370 | 2790 | 432 | 276 | 177 |
19 | 120 | 546 | 453 | e210 | e170 | 570 | 394 | 2450 | 2780 | 416 | 273 | 177 |
20 | 119 | 498 | 446 | e210 | e180 | 641 | 478 | 2430 | 2470 | 398 | 268 | 176 |
21 | 104 | 417 | 505 | e210 | e190 | 621 | 476 | 2450 | 2240 | 422 | 258 | 175 |
22 | 132 | 448 | 418 | e210 | e200 | 607 | 690 | 3100 | 2310 | 447 | 250 | 169 |
23 | 119 | 382 | 399 | e200 | e220 | 558 | 801 | 4100 | 2210 | 429 | 232 | 170 |
24 | 105 | 335 | 423 | e200 | e240 | 515 | 652 | 4470 | 2140 | 391 | 241 | 165 |
25 | 158 | 358 | 403 | e200 | e280 | 578 | 800 | 4350 | 2140 | 353 | 272 | 158 |
26 | 157 | 344 | e390 | e200 | e330 | 770 | 786 | 3990 | 1810 | 338 | 305 | 148 |
27 | 161 | 352 | 359 | e200 | e360 | 1130 | 768 | 3660 | 1560 | 346 | 258 | 149 |
28 | 195 | 296 | 337 | e200 | e400 | 1070 | 683 | 3350 | 1410 | 346 | 275 | 150 |
29 | 146 | 352 | 410 | e190 | e430 | 1340 | 430 | 3060 | 1300 | 276 | 367 | 161 |
30 | 188 | 232 | 384 | e190 | --- | 1520 | 545 | 2920 | 1160 | 292 | 345 | 147 |
31 | 181 | --- | 391 | e190 | --- | 1420 | --- | 3010 | --- | 271 | 377 | --- |
TOTAL | 3936 | 12185 | 14339 | 7243 | 6070 | 29633 | 19066 | 64126 | 57680 | 17678 | 9751 | 5893 |
MEAN | 127 | 406 | 463 | 234 | 209 | 956 | 636 | 2069 | 1923 | 570 | 315 | 196 |
MAX | 195 | 785 | 1250 | 412 | 430 | 1760 | 1250 | 4470 | 3020 | 958 | 525 | 342 |
MIN | 91 | 167 | 236 | 190 | 160 | 470 | 330 | 318 | 1160 | 271 | 232 | 147 |
CFSM | 0.16 | 0.50 | 0.57 | 0.29 | 0.26 | 1.18 | 0.78 | 2.55 | 2.37 | 0.70 | 0.39 | 0.24 |
IN. | 0.18 | 0.56 | 0.66 | 0.33 | 0.28 | 1.36 | 0.87 | 2.94 | 2.65 | 0.81 | 0.45 | 0.27 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2004, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 387 | 476 | 450 | 420 | 537 | 1092 | 1059 | 737 | 587 | 393 | 331 | 341 |
MAX | 1931 | 1536 | 1755 | 1818 | 1386 | 2434 | 3591 | 2078 | 1923 | 1382 | 902 | 1763 |
(WY) | 1987 | 1986 | 1983 | 1960 | 2001 | 1979 | 1993 | 1973 | 2004 | 1969 | 1952 | 1972 |
MIN | 79.5 | 113 | 91.4 | 87.7 | 105 | 252 | 256 | 108 | 124 | 69.2 | 57.2 | 62.7 |
(WY) | 1957 | 1950 | 1964 | 1940 | 1940 | 1968 | 1958 | 1958 | 1988 | 1958 | 1958 | 1946 |
SUMMARY STATISTICS | FOR 2003 CALENDAR YEAR | FOR 2004 WATER YEAR | WATER YEARS 1940 - 2004 | |||
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ANNUAL TOTAL | 112331 | 247600 | ||||
ANNUAL MEAN | 308 | 677 | 567 | |||
HIGHEST ANNUAL MEAN | 1240 | 1993 | ||||
LOWEST ANNUAL MEAN | 174 | 1958 | ||||
HIGHEST DAILY MEAN | 1360 | May 10 | 4470 | May 24 | 7100 | Apr 1 1960 |
LOWEST DAILY MEAN | 83 | Sep 8 | 91 | Oct 11 | 35 | Sep 9 1958 |
ANNUAL SEVEN-DAY MINIMUM | 92 | Sep 2 | 103 | Oct 1 | 41 | Sep 7 1958 |
MAXIMUM PEAK FLOW | 4510 | May 24 | 7520 A | Mar 31 1960 | ||
MAXIMUM PEAK STAGE | 13.73 | May 24 | 14.10 B | Feb 21 1994 | ||
INSTANTANEOUS LOW FLOW | 82 | Oct 11 | 0.00 C | Oct 26 1945 | ||
ANNUAL RUNOFF (CFSM) | 0.379 | 0.834 | 0.699 | |||
ANNUAL RUNOFF (INCHES) | 5.15 | 11.36 | 9.50 | |||
10 PERCENT EXCEEDS | 562 | 1680 | 1270 | |||
50 PERCENT EXCEEDS | 239 | 374 | 370 | |||
90 PERCENT EXCEEDS | 109 | 160 | 128 |
A - Gage height, 9.25 ft, from graph based on gage readings, site and datum then in use. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |