Description, qualifying comments, and acceptable water years.
Drainage area is 2459 sq.mi. Datum is 433.40 ft.
Located in hydrologic unit 12030103 at Latitude: 32:57:57N Longitude: 096:56:39W
Station is in the state of TX (county code 113) and serviced by the TX office.
Channel slope is 6.08 feet/mile
Stream length is 102.00 miles
Mean basin elevation is 777.00 feet above National Geodetic Vertical Datum
Percent of contributing drainage area covered by
Storage: 0.60% Lakes: N.A.% Forests: 58.00% Glaciers: N.A.%
Soil infiltration index is N.A. inches
Annual precipitation is 35.00 inches
Precipitation intensity is 3.90 inches/24 hour (expected on the average once each two years)
January minimum temperature is 32.00 degrees Fahrenheit
Comments and qualifications on the data:
Almost completely regulated (96%) by Lewisville Lake and by Grapevine Lake since 1954.
Daily and longer averages for 47 water years are acceptable (some whole years and all partial years are excluded).
A water year with acceptable data is indicated by an asterisk in the time line, which spans 1874 through 1988.
Water year
1 1 1 1 1 1 1 1 1 1 1 1 1
8 8 8 9 9 9 9 9 9 9 9 9 9
7 8 9 0 1 2 3 4 5 6 7 8 8
4-----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5----0----5--8
..................................***********************************************..................................
The streamflow data
Daily values, monthly mean values, and yearly mean values
of streamflow data are available in tablular form.
Select the desired option from the list below.
a. Table of daily data (163K text)
b. Table of monthly data
c. Table of annual data
The data tables do not have column heading for ease of reading into statistical programs.
For a detailed description of the format of the data tables,
select the corresponding file from the list below.
a. Format of the daily data table
b. Format of the monthly data table
c. Format of the yearly data table