USGS
Water Resources Data - California, Water Year 1994
11283250 CLAVEY RIVER NEAR LONG BARN, CA
LOCATION.--Lat 38`04'36", long 120`00'37", in NW 1/4 NW 1/4 sec.33, T.3 N., R.18 E., Tuolumne County, Hydrologic
Unit 18040009, Stanislaus National Forest, on right bank 10 ft upstream from Forest Service Road Bridge,
0.4 mi downstream from Trout Creek, and 7.0 mi east of town of Long Barn.
DRAINAGE AREA.--48.9 mi2.
PERIOD OF RECORD.--October 1986 to September 1994 (discontinued).
GAGE.--Water-stage recorder and crest-stage gage. Elevation of gage is 5,160 ft above sea level, from
topographic map.
REMARKS.--Records good except for estimated daily discharges, which are fair. No storage or diversion upstream
from station. See schematic diagram of Tuolumne River basin.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,150 ft3/s, Jan. 22, 1993, gage height, 7.03 ft; minimum
daily, 0.07 ft3/s, Sept. 9, 15-19, 1988.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 300 ft3/s and maximum (*):
Discharge Gage height Discharge Gage height
Date Time (ft3/s) (ft) Date Time (ft3/s) (ft)
Apr. 19 2400 *507 *3.56 May 11 0330 405 3.25
Minimum daily, 0.25 ft3/s, Sept. 7-10, 18.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1993 TO SEPTEMBER 1994
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 .94 1.7 4.9 6.4 11 45 172 186 121 5.6 1.1 .27
2 .91 1.7 4.2 6.2 11 58 187 212 101 5.3 1.1 .27
3 .90 1.7 3.7 6.4 9.9 77 201 217 92 5.1 .97 .27
4 .90 1.7 3.6 8.1 9.5 83 160 226 77 4.9 .93 .27
5 1.1 1.7 3.3 11 9.3 98 135 218 69 4.5 .89 .27
6 1.1 1.6 e3.2 8.9 9.1 98 132 207 64 4.3 .85 .26
7 1.1 1.6 3.3 8.2 9.8 88 107 176 55 4.0 .74 .25
8 1.1 1.6 3.4 7.3 15 88 108 170 48 3.8 .70 .25
9 1.2 1.6 3.9 6.7 13 109 106 195 45 3.5 .66 .25
10 1.2 1.6 4.1 6.0 12 117 95 249 40 3.3 .64 .25
11 1.7 2.0 4.7 6.0 e10 112 100 301 37 3.2 .61 .27
12 2.0 3.3 e4.6 5.8 e9.8 95 119 270 33 3.0 .59 .28
13 2.1 2.8 5.2 5.9 e8.4 98 146 218 29 2.9 .63 .32
14 2.0 2.5 5.7 6.2 e8.4 153 184 206 26 2.7 .66 .33
15 4.4 2.3 5.3 6.4 e10 168 240 174 23 2.4 .51 .32
16 8.0 2.2 e4.6 6.6 14 149 298 126 20 2.3 .49 .30
17 7.1 2.2 e4.6 6.9 20 114 317 105 18 2.2 .47 .26
18 5.0 2.1 e4.6 7.7 17 121 317 125 16 2.1 .44 .25
19 3.8 2.0 e4.5 8.5 16 127 339 138 15 2.0 .41 .26
20 3.4 2.0 e4.5 9.5 16 108 321 155 14 2.0 .35 .30
21 3.2 2.0 e4.6 9.4 15 120 273 204 13 1.9 .36 .33
22 3.0 2.2 e4.6 9.4 15 125 213 195 12 1.9 .36 .31
23 2.8 2.3 e4.6 11 15 89 181 169 11 1.9 .35 .29
24 2.6 2.1 e4.9 9.7 17 76 143 173 10 1.8 .35 .44
25 2.4 2.1 e5.6 11 21 71 127 180 9.7 1.6 .33 .39
26 2.2 2.5 e7.2 11 24 66 120 143 8.9 1.4 .32 .37
27 2.1 2.4 9.3 10 30 84 142 160 8.2 1.4 .30 .32
28 2.0 2.3 7.6 11 46 131 127 145 7.4 1.3 .29 .64
29 1.9 4.4 7.2 11 --- 144 155 129 6.6 1.2 .28 1.1
30 1.8 7.6 7.0 10 --- 155 172 125 6.0 1.2 .28 .80
31 1.7 --- 6.7 11 --- 172 --- 156 --- 1.2 .27 ---
TOTAL 75.65 69.8 155.2 259.2 422.2 3339 5437 5653 1035.8 85.9 17.23 10.49
MEAN 2.44 2.33 5.01 8.36 15.1 108 181 182 34.5 2.77 .56 .35
MAX 8.0 7.6 9.3 11 46 172 339 301 121 5.6 1.1 1.1
MIN .90 1.6 3.2 5.8 8.4 45 95 105 6.0 1.2 .27 .25
AC-FT 150 138 308 514 837 6620 10780 11210 2050 170 34 21
e Estimated.
11283250 CLAVEY RIVER NEAR LONG BARN, CA--Continued
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1987 - 1994, BY WATER YEAR (WY)
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN 7.47 9.20 12.1 30.9 42.7 158 243 201 71.9 15.9 1.92 1.53
MAX 44.9 21.8 25.7 133 93.0 331 392 414 216 61.0 5.50 7.70
(WY) 1990 1990 1988 1993 1993 1989 1993 1993 1993 1993 1993 1989
MIN .11 1.04 1.47 2.68 4.95 67.7 151 97.4 15.0 2.12 .30 .11
(WY) 1989 1991 1987 1991 1991 1987 1988 1992 1992 1987 1987 1988
SUMMARY STATISTICS FOR 1993 CALENDAR YEAR FOR 1994 WATER YEAR WATER YEARS 1987 - 1994
ANNUAL TOTAL 49883.86 16560.47
ANNUAL MEAN 137 45.4 66.3
HIGHEST ANNUAL MEAN 138 1993
LOWEST ANNUAL MEAN 33.6 1987
HIGHEST DAILY MEAN 750 Mar 17 339 Apr 19 1470 Mar 8 1989
LOWEST DAILY MEAN .90 Sep 30 .25 Sep 7 .07 Sep 9 1988
ANNUAL SEVEN-DAY MINIMUM .92 Sep 28 .26 Sep 4 .07 Sep 13 1988
INSTANTANEOUS PEAK FLOW 507 Apr 19 2150 Jan 22 1993
INSTANTANEOUS PEAK STAGE 3.56 Apr 19 7.03 Jan 22 1993
ANNUAL RUNOFF (AC-FT) 98940 32850 48050
10 PERCENT EXCEEDS 414 163 200
50 PERCENT EXCEEDS 62 6.4 14
90 PERCENT EXCEEDS 1.6 .37 .47
Back to USGS 1994 California Hydrologic Data
Report
The URL for this page is
<http://water.wr.usgs.gov/data94_src>.
If you have any questions or comments about this document contact:
Dale Alan Cox <dacox@usgs.gov>
U.S. Geological
Survey