1998 California Hydrologic Data Report
10257550 WHITEWATER RIVER AT WINDY POINT, NEAR WHITE WATER, CA
- 1998 WY
10257550 WHITEWATER RIVER AT WINDY POINT, NEAR WHITE WATER, CA
LOCATION.-Lat 33°53'56", long 116°37'13", in SW 1/4 NE 1/4 sec.24, T.3 S., R.3 E., Riverside County, Hydrologic Unit 18100200, on right bank 200 ft
north of Highway 111, 2.0 mi southeast of White Water, and 3.8 mi east of the junction of Highway 111 and Interstate 10.
DRAINAGE AREA.-264 mi2.
PERIOD OF RECORD.-October 1984 to September 1987, October 1989 to current year. Discharge measurements only, October 1987 to September 1989. Discharge
measurements for the period July 1982 to September 1984 available in files of the U.S. Geological Survey.
REVISED RECORDS.-WDR CA-88-1: Drainage area.
GAGE.-Water-stage recorder and concrete control; auxiliary water-stage recorder on overflow channel since Jan. 23, 1992. Elevation of gage is 1,040 ft above
sea level, from topographic map.
REMARKS.-Records good except for estimated daily discharges, which are poor. Imported water is released to the Whitewater River from the Colorado River
Aqueduct at a point 2.75 mi upstream for ground-water recharge in the upper Coachella Valley. Water is diverted out of the basin 18.5 mi upstream to powerplants
in the San Gorgonio River Basin and then to an area north of Banning for irrigation. See schematic diagram of Salton Sea Basin.
COOPERATION.-Records of diversion out of basin provided by Southern California Edison Co. Records of Colorado River Aqueduct releases provided by Metropolitan
Water District.
EXTREMES FOR PERIOD OF RECORD.-Maximum computed discharge, 2,530 ft3/s, Jan. 10, 1995, gage height, 8.32 ft, main channel, from rating curve extended
above 400 ft3/s on basis of critical-depth computation (flow in overflow channel at peak); maximum probably exceeded during flood of Jan. 16, 1993,
but discharge is unknown; no flow for several days in most years.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 268 139 147 .06 .79 4.0 e167 369 482 197 427 46
2 225 140 145 .16 1.6 2.1 e167 411 465 .03 479 38
3 153 137 146 .65 11 .82 e170 417 463 .81 471 32
4 150 84 148 .10 17 .39 e175 421 476 .79 471 33
5 148 .00 144 1.5 70 .35 e175 e414 478 .34 472 29
6 148 .00 160 .33 185 2.7 e177 e420 473 242 473 29
7 154 .26 178 .34 244 1.7 187 e410 478 500 470 29
8 148 .06 181 .46 310 1.1 178 400 508 446 458 29
9 142 .33 168 10 190 e.90 173 403 547 348 467 67
10 137 .31 167 61 192 e.71 175 403 543 351 469 134
11 136 4.9 164 18 174 e1.4 181 443 524 345 462 163
12 139 99 163 8.5 86 e2.9 190 482 520 343 457 164
13 136 155 158 4.2 .00 5.8 265 492 524 343 292 167
14 132 163 157 3.6 108 16 e322 491 528 340 .00 167
15 129 161 157 35 79 3.2 301 476 523 241 .00 169
16 131 151 159 2.6 7.0 3.9 309 459 506 138 .00 171
17 130 147 161 3.0 5.8 8.0 296 453 525 136 .00 167
18 129 150 160 2.1 3.9 10 302 447 519 138 .00 164
19 129 142 154 .38 1.4 14 301 447 517 140 .00 165
20 129 147 153 1.1 2.4 14 303 452 520 140 .00 162
21 129 146 155 .49 .99 20 301 442 513 141 .00 168
22 129 144 155 2.0 80 20 305 179 544 e140 .00 315
23 126 143 157 .90 72 24 308 23 527 e142 .00 452
24 131 144 156 .22 195 14 306 27 542 143 .00 454
25 134 143 158 .10 73 e29 314 29 555 146 .00 419
26 134 149 159 .00 49 e29 323 277 543 146 .00 390
27 134 161 160 .14 25 e3.7 331 467 534 145 .00 393
28 135 158 157 .57 8.6 e40 321 476 543 147 .00 387
29 139 152 156 4.4 --- e23 315 478 537 148 .00 384
30 137 149 97 6.2 --- e71 319 483 536 337 .00 386
31 137 --- .02 1.9 --- e139 --- 488 --- 452 53 ---
TOTAL 4458 3309.86 4680.02 170.00 2192.48 506.67 7657 12079 15493 6476.97 5921.00 5873
MEAN 144 110 151 5.48 78.3 16.3 255 390 516 209 191 196
MAX 268 163 181 61 310 139 331 492 555 500 479 454
MIN 126 .00 .02 .00 .00 .35 167 23 463 .03 .00 29
AC-FT 8840 6570 9280 337 4350 1000 15190 23960 30730 12850 11740 11650
a 11220 7790 10380 77 2410 498 14600 22720 28240 15130 13270 11920
b 103 83 103 88 73 47 124 285 2.8 393 355 1.4
e Estimated.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1985 - 1998, BY WATER YEAR (WY)
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN 144 142 108 124 131 124 141 112 141 107 111 136
MAX 596 499 477 598 595 445 316 390 516 417 378 463
(WY) 1987 1987 1987 1987 1987 1987 1986 1998 1998 1986 1986 1986
MIN .025 .000 .000 .000 3.16 3.97 .026 .000 .000 .000 .000 .000
(WY) 1992 1992 1990 1992 1991 1989 1991 1987 1987 1989 1987 1991
SUMMARY STATISTICS FOR 1997 CALENDAR YEAR FOR 1998 WATER YEAR WATER YEARS 1985 - 1998
ANNUAL TOTAL 47635.68 68817.00
ANNUAL MEAN 131 189 135
HIGHEST ANNUAL MEAN 308 1986
LOWEST ANNUAL MEAN 11.9 1991
HIGHEST DAILY MEAN 328 Apr 2 555 Jun 25 2600 Jan 7 1993
LOWEST DAILY MEAN .00 Mar 28 .00 Nov 5 .00 Mar 4 1985
ANNUAL SEVEN-DAY MINIMUM .84 Nov 5 .00 Aug 14 .00 Feb 16 1986
INSTANTANEOUS PEAK FLOW 688 Feb 24 2530 Jan 10 1995
INSTANTANEOUS PEAK STAGE 5.45 Feb 24 8.32 Jan 10 1995
ANNUAL RUNOFF (AC-FT) 94490 136500 98050
10 PERCENT EXCEEDS 236 476 348
50 PERCENT EXCEEDS 134 148 56
90 PERCENT EXCEEDS 9.0 .35 .00
a Discharge, in acre-feet, of imported water released to river 2.75 mi upstream.
b Discharge, in acre-feet, diverted out of basin 18.5 mi upstream
1998 California Hydrologic Data Report Index
USGS Water Resources of California
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Last modified: Wed Aug 4 09:40:26 PDT 1999