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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
03167000 REED CREEK AT GRAHAMS FORGE, VA
LOCATION.--Latitude 36°56'22", Longitude 80°53'13", North American Datum of 1927,
                    Wythe County, VA, Hydrologic Unit 05050001.
DRAINAGE AREA.--258 square miles.
PERIOD OF RECORD.--July 1908 to September 1916, January 1927 to current year. Monthly discharge only for some periods, published in WSP 1305.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2007.
REGULATION.--Minimal diurnal fluctuation caused by mill.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision 03167000 plot. REED CREEK AT GRAHAMS FORGE, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 10/14/2008 is 56 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 7-Day Average Streamflow
            Flow values in cubic feet per second


                03167000     REED CREEK AT GRAHAMS FORGE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
40.1
66.4
82.5
151
257
427
679
928
1,930
 
88
February
36.9
86.6
121
205
342
590
857
1,080
3,010
 
88
March
32.9
132
182
258
389
591
925
1,220
3,200
 
88
April
61.7
148
172
225
329
521
827
1,080
3,030
 
88
May
53.3
113
132
174
244
375
617
804
1,660
 
89
June
59.0
83.1
95.7
122
168
255
410
546
1,740
 
89
July
58.0
70.3
78.1
95.9
122
160
239
380
3,020
 
89
August
50.9
63.7
72.4
85.0
106
147
239
347
1,520
 
89
September
46.6
58.3
65.4
74.7
90.2
114
180
270
1,170
 
89
October
43.6
59.4
63.7
74.9
91.6
140
247
388
1,580
 
87
November
47.1
63.7
68.9
79.3
105
174
306
442
1,420
 
88
December
49.0
65.7
69.6
95.3
146
295
507
668
1,520
 
88
 
       

The current 7-day running-average value for 10/14/2008 is 56 cubic feet per second.

---- Provisional Data Subject to Revision ----

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