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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily Streamflow
 
03531500 POWELL RIVER NEAR JONESVILLE, VA
LOCATION.--Latitude 3639'43", Longitude 8305'42", North American Datum of 1927,
                    Lee County, VA, Hydrologic Unit 06010206.
DRAINAGE AREA.--319 square miles.
PERIOD OF RECORD.--October 1931 to current year. Monthly discharge only for some periods, published in WSP 1306.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015.
REGULATION.--No known regulation.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.

     Duration Plot with Daily Streamflow Conditions
Provisional Data Subject to Revision
03531500 plot. 
POWELL RIVER NEAR JONESVILLE, VA
Provisional Data Subject to Revision

                    

The current daily value for 02/25/2017 is 358.0 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily


      Duration Table of Daily Streamflow
           
Flow values in cubic feet per second


                03531500     POWELL RIVER NEAR JONESVILLE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
30.0
85.0
142
288
515
1,060
1,970
2,930
27,000
 
84
February
40.0
165
230
376
626
1,120
2,110
3,340
19,300
 
84
March
82.0
270
320
446
700
1,200
2,150
3,340
21,400
 
84
April
118
204
251
368
559
926
1,560
2,340
35,000
 
84
May
45.0
124
150
220
346
606
1,140
1,680
10,700
 
84
June
27.0
70.0
83.0
118
189
348
632
980
7,970
 
84
July
28.0
54.0
66.0
92.2
144
257
486
781
4,340
 
84
August
27.0
41.0
49.5
72.0
116
206
405
642
6,180
 
84
September
18.0
28.0
35.0
50.0
76.0
127
225
367
5,430
 
84
October
18.0
26.0
32.0
48.0
74.5
135
298
483
9,890
 
84
November
23.0
33.0
42.0
63.0
139
317
698
1,160
15,300
 
84
December
25.0
51.0
73.0
136
341
754
1,460
2,350
21,900
 
84
 
       
Instantaneous minimum flow for period of record = 17.0 cubic feet per second.

The current daily value for 02/25/2017 is 358.0 cubic feet per second.

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

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