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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 2015.
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 03/22/2017 is 285.14 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
73.6
87.4
159
256
394
549
694
993
 
96
February
52.5
98.3
142
225
361
538
685
781
1,770
 
96
March
63.6
156
209
307
441
605
778
884
1,570
 
96
April
95.7
184
212
286
419
613
836
992
1,490
 
96
May
64.4
144
168
232
315
431
582
713
1,400
 
97
June
68.6
101
115
156
212
327
467
571
792
 
97
July
61.3
77.4
84.4
108
142
208
319
391
947
 
97
August
58.4
71.0
77.4
94.8
119
157
239
361
1,080
 
97
September
51.2
61.3
71.4
81.6
102
132
223
282
542
 
97
October
44.9
60.6
65.2
76.6
94.4
140
240
292
903
 
95
November
45.7
62.6
67.3
80.7
109
178
298
377
678
 
96
December
50.6
67.5
72.6
92.6
147
289
450
506
868
 
96
 
       

The current 28-day running-average value for 03/22/2017 is 285.14 cubic feet per second.

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

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