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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 14-Day Average Streamflow
 
02017500 JOHNS CREEK AT NEW CASTLE, VA
LOCATION.--Latitude 37°30'22", Longitude 80°06'25", North American Datum of 1927,
                    Craig County, VA, Hydrologic Unit 02080201.
DRAINAGE AREA.--105 square miles.
PERIOD OF RECORD.--April 1926 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2007.
REGULATION.--No known regulation.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with 14-Day Average Streamflow Conditions
Provisional Data Subject to Revision 02017500 plot. JOHNS CREEK AT NEW CASTLE, VA
Provisional Data Subject to Revision

                    

The current 14-day running-average value for 10/14/2008 is 8.76 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


                02017500     JOHNS CREEK AT NEW CASTLE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
12.9
22.8
35.7
75.1
132
226
368
473
1,030
 
81
February
15.9
34.8
51.8
94.8
172
279
429
524
996
 
81
March
18.1
59.9
80.8
133
207
329
522
626
1,140
 
81
April
35.0
66.1
81.5
118
178
331
494
595
1,290
 
81
May
20.9
38.9
49.1
75.6
129
218
358
448
996
 
81
June
9.82
21.1
25.1
34.7
58.8
122
263
423
955
 
81
July
8.79
11.8
13.1
17.8
25.7
42.6
86.9
158
957
 
81
August
7.81
9.88
11.0
14.1
20.5
35.4
77.1
131
730
 
81
September
6.30
8.85
9.66
11.9
17.4
29.8
88.0
186
695
 
81
October
7.41
9.46
10.5
13.5
19.5
45.2
129
218
718
 
80
November
9.42
13.3
14.5
19.1
36.4
98.3
229
319
724
 
81
December
11.6
16.0
19.3
34.2
82.1
166
280
358
862
 
81
 
       

The current 14-day running-average value for 10/14/2008 is 8.76 cubic feet per second.

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

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