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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
03164000 NEW RIVER NEAR GALAX, VA
LOCATION.--Latitude 36°38'50", Longitude 80°58'45", North American Datum of 1927,
                    Grayson County, VA, Hydrologic Unit 05050001.
DRAINAGE AREA.--1,141 square miles.
PERIOD OF RECORD.--October 1929 to current year. Monthly discharge only for some periods, published in WSP 1305.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015.
REGULATION.--Slight diurnal fluctuation at times caused by small hydroelectric dam 36.4 miles above station.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision 03164000 plot. NEW RIVER NEAR GALAX, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 03/22/2017 is 1082.43 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


                03164000     NEW RIVER NEAR GALAX, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
387
652
851
1,300
1,820
2,720
3,800
4,850
17,100
 
86
February
413
823
1,060
1,440
2,160
3,010
4,250
5,220
11,100
 
86
March
617
1,100
1,340
1,760
2,340
3,300
4,710
6,010
12,000
 
86
April
798
1,180
1,320
1,630
2,250
3,210
4,680
5,980
14,400
 
86
May
617
969
1,100
1,410
1,890
2,580
3,430
4,060
10,300
 
86
June
464
724
830
1,090
1,470
2,060
2,970
3,780
10,600
 
86
July
327
603
705
920
1,180
1,590
2,080
2,770
13,900
 
86
August
283
481
592
803
1,040
1,420
2,190
3,100
23,500
 
86
September
304
487
556
684
887
1,330
2,190
3,010
12,600
 
86
October
329
452
515
657
965
1,530
2,650
3,660
9,000
 
85
November
390
548
601
759
1,160
1,820
2,930
3,640
21,100
 
86
December
360
597
691
1,020
1,510
2,260
3,220
3,900
9,180
 
86
 
       

The current 7-day running-average value for 03/22/2017 is 1082.43 cubic feet per second.

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

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