USGS - science for a changing world
Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 14-Day Average Streamflow
 
03529500 POWELL RIVER AT BIG STONE GAP, VA
LOCATION.--Latitude 36°52'08", Longitude 82°46'32", North American Datum of 1927,
                    Wise County, VA, Hydrologic Unit 06010206
DRAINAGE AREA.--112 square miles.
PERIOD OF RECORD.--October 1944 to September 1959, October 1978 to September 1981, October 2001 to current year.
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 14-Day Average Streamflow Conditions
Provisional Data Subject to Revision 03529500 plot. POWELL RIVER AT BIG STONE GAP, VA
Provisional Data Subject to Revision

                    

The current 14-day running-average value for 03/22/2017 is 205.93 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 14-Day Average Streamflow
            Flow values in cubic feet per second


                03529500     POWELL RIVER AT BIG STONE GAP, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
16.1
29.0
56.1
130
249
400
598
736
1,270
 
32
February
37.6
92.6
112
175
279
447
691
1,100
1,830
 
32
March
83.7
137
165
212
306
466
816
1,010
1,400
 
32
April
106
125
150
207
296
416
525
636
1,030
 
32
May
50.1
81.1
101
138
218
296
431
533
1,150
 
32
June
21.9
38.2
47.1
63.1
110
183
293
365
1,040
 
32
July
19.5
29.9
34.9
46.5
67.8
116
220
258
485
 
32
August
8.90
17.7
23.4
36.4
65.4
118
165
276
461
 
32
September
6.43
9.36
13.1
26.5
45.9
73.6
117
155
452
 
32
October
6.24
9.01
12.5
19.9
30.1
66.5
116
137
395
 
30
November
7.71
11.4
17.1
25.7
51.9
147
241
282
622
 
32
December
9.49
30.7
38.2
55.5
174
308
477
603
1,030
 
32
 
       

The current 14-day running-average value for 03/22/2017 is 205.93 cubic feet per second.

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

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://va.water.usgs.gov/duration_plots/htm_14/dp03529500.htm
Page Contact Information: Virginia WSC Webmaster
Page Last Modified: 6/19/2016