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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
03488000 NORTH FORK HOLSTON RIVER NEAR SALTVILLE, VA
LOCATION.--Latitude 36°53'48", Longitude 81°44'47", North American Datum of 1927,
                    Smyth County, VA, Hydrologic Unit 06010101.
DRAINAGE AREA.--221 square miles.
PERIOD OF RECORD.--June 1907 to December 1908 (published as "at Saltville"), October 1920 to current year. Monthly discharge only for some periods, published in WSP 1306.
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 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision 03488000 plot. NORTH FORK HOLSTON RIVER NEAR SALTVILLE, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 03/21/2017 is 398 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


                03488000     NORTH FORK HOLSTON RIVER NEAR SALTVILLE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
25.0
53.6
88.9
190
320
578
977
1,320
3,730
 
96
February
31.4
108
147
235
409
699
1,100
1,430
5,030
 
96
March
74.6
157
208
298
451
718
1,190
1,550
3,430
 
96
April
72.9
139
168
238
352
578
878
1,250
3,630
 
96
May
42.6
98.9
122
174
273
457
756
974
2,110
 
96
June
31.4
57.0
66.3
89.6
147
274
493
769
2,840
 
96
July
22.6
39.4
48.4
63.0
93.3
146
270
386
2,180
 
97
August
21.0
32.9
37.7
49.6
78.4
138
265
378
2,340
 
97
September
17.3
26.4
28.4
37.3
54.3
83.3
145
207
1,480
 
97
October
16.3
25.3
28.0
35.9
51.6
103
247
383
2,300
 
96
November
24.0
30.0
34.7
46.6
89.6
199
355
487
3,020
 
97
December
26.3
38.7
46.4
90.3
203
408
715
972
2,940
 
97
 
       

The current 7-day running-average value for 03/21/2017 is 398 cubic feet per second.

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

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