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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
03168000 NEW RIVER AT ALLISONIA, VA
LOCATION.--Latitude 36°56'15", Longitude 80°44'45", North American Datum of 1927,
                    Pulaski County, VA, Hydrologic Unit 05050001.
DRAINAGE AREA.--2,212 square miles.
PERIOD OF RECORD.--September 1929 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2007.
REGULATION.--Flow regulated by powerplants about 25 miles upstream.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision 03168000 plot. NEW RIVER AT ALLISONIA, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 08/28/2008 is 2483.71 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


                03168000     NEW RIVER AT ALLISONIA, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
772
1,020
1,260
2,130
3,120
4,510
6,430
8,280
26,400
 
78
February
767
1,270
1,710
2,510
3,740
5,340
7,630
9,370
18,300
 
78
March
1,050
1,770
2,180
3,030
4,070
5,780
8,310
10,400
22,900
 
78
April
1,290
1,920
2,170
2,690
3,840
5,570
8,010
10,400
23,000
 
78
May
1,090
1,530
1,800
2,370
3,190
4,450
5,960
7,090
17,300
 
78
June
724
1,180
1,360
1,800
2,520
3,540
4,750
6,010
18,900
 
78
July
643
979
1,190
1,540
2,000
2,630
3,440
4,290
13,700
 
78
August
527
853
999
1,330
1,760
2,280
3,550
4,850
31,800
 
78
September
501
829
946
1,140
1,450
2,060
3,520
4,810
20,700
 
78
October
636
801
871
1,100
1,570
2,430
4,190
6,280
14,800
 
77
November
628
909
1,000
1,300
1,940
2,990
4,540
6,310
26,900
 
78
December
699
996
1,130
1,640
2,460
3,610
5,220
6,380
16,300
 
78
 
       

The current 7-day running-average value for 08/28/2008 is 2483.71 cubic feet per second.

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

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