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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-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 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 03167000 plot. REED CREEK AT GRAHAMS FORGE, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 10/14/2008 is 58.61 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 28-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
58.0
71.5
84.6
155
257
392
545
703
993
 
88
February
52.5
95.1
133
235
371
541
685
779
1,770
 
88
March
63.6
153
206
308
441
608
783
899
1,570
 
88
April
95.7
182
207
279
419
622
858
998
1,490
 
88
May
64.4
141
165
229
312
427
585
706
1,400
 
89
June
68.6
101
114
155
215
330
470
574
792
 
89
July
61.3
77.9
84.7
109
142
207
314
390
947
 
89
August
58.4
71.5
77.6
95.0
119
157
235
377
1,080
 
89
September
51.2
60.5
70.6
81.1
102
132
224
283
542
 
89
October
44.9
61.7
66.4
77.1
94.0
140
244
309
903
 
87
November
45.7
63.4
67.7
79.9
110
182
301
379
678
 
88
December
50.6
67.9
72.9
93.2
146
289
450
498
843
 
88
 
       

The current 28-day running-average value for 10/14/2008 is 58.61 cubic feet per second.

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

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