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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-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 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 03168000 plot. NEW RIVER AT ALLISONIA, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 10/14/2008 is 1297.14 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


                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
957
1,110
1,430
2,290
3,340
4,270
5,110
6,020
9,320
 
78
February
894
1,450
1,890
2,730
3,860
5,150
6,290
6,940
10,800
 
78
March
1,070
2,030
2,470
3,300
4,440
5,780
6,990
8,030
11,600
 
78
April
1,540
2,130
2,510
3,150
4,400
6,340
7,940
9,130
12,100
 
78
May
1,330
1,910
2,150
2,780
3,560
4,780
6,190
7,140
12,000
 
78
June
976
1,400
1,640
2,230
2,990
3,960
4,980
6,170
9,130
 
78
July
719
1,090
1,300
1,670
2,220
2,870
3,800
4,990
8,750
 
78
August
632
974
1,170
1,520
1,910
2,590
3,230
4,280
12,300
 
78
September
670
905
1,020
1,290
1,650
2,240
3,460
4,400
13,300
 
78
October
712
871
953
1,160
1,670
2,550
3,830
5,460
12,200
 
77
November
703
904
1,010
1,260
1,970
3,140
4,310
5,460
10,600
 
78
December
808
1,030
1,160
1,590
2,540
3,640
5,170
5,700
10,300
 
78
 
       

The current 28-day running-average value for 10/14/2008 is 1297.14 cubic feet per second.

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

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