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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-Day Average Streamflow
 
02071530 SMITH RIVER AT SMITH RIVER CHURCH NEAR WOOLWINE, VA
LOCATION.--Latitude 36°46'42", Longitude 80°14'58", North American Datum of 1927,
                    Patrick County, VA, Hydrologic Unit 03010103.
DRAINAGE AREA.--26.3 square miles.
PERIOD OF RECORD.--October 1994 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015.
REGULATION.--No known regulation.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 02071530 plot. SMITH RIVER AT SMITH RIVER CHURCH NEAR WOOLWINE, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 03/22/2017 is 27.93 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


                02071530     SMITH RIVER AT SMITH RIVER CHURCH NEAR WOOLWINE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
15.4
19.1
22.1
28.9
47.5
66.2
78.3
86.5
104
 
21
February
21.1
22.6
24.6
31.3
51.3
65.5
94.0
109
126
 
21
March
21.6
26.3
30.8
37.6
50.2
71.3
90.3
102
122
 
21
April
27.4
30.8
33.9
45.7
58.6
71.2
89.9
95.3
138
 
21
May
23.0
28.4
29.6
40.2
50.5
62.8
79.2
102
140
 
21
June
12.7
17.6
21.7
30.0
39.3
48.9
82.3
102
151
 
21
July
10.3
12.3
17.6
22.5
27.3
38.3
80.2
123
165
 
21
August
5.70
9.80
12.0
16.2
21.2
31.7
54.8
77.9
116
 
21
September
7.38
11.5
13.3
16.9
21.3
35.5
57.0
67.0
169
 
21
October
12.1
13.7
14.3
17.5
23.7
32.3
52.0
68.2
123
 
20
November
12.0
13.4
15.4
20.7
27.2
43.4
53.6
63.0
83.7
 
21
December
13.2
15.7
17.4
21.4
38.5
62.3
80.5
88.4
101
 
21
 
       

The current 28-day running-average value for 03/22/2017 is 27.93 cubic feet per second.

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

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