Washita Basin Project Water Data


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Washita Basin Project
Water Data

Washita Basin Project - Main Page

Project Water Supply

Current Conditions:

Reservoir Storage

Fort Cobb Reservoir
Foss Reservoir

Weather Conditions (NOAA)

Anadarko, Oklahoma

Clinton, Oklahoma

Cordell, Oklahoma

Streamflow

Washita River near Foss, Oklahoma (USGS)
Cobb Creek near Fort Cobb, Oklahoma (USGS)

Drought Index

Palmer Drought Index Map
Explanation of Palmer Drought Severity Index (Text)

Historic Conditions:

Annual Precipitation

Normal	28.88 in
Maximum - 1986	50.47 in
Minimum - 1966	18.80 in
Clinton, Oklahoma 1961-1990

Temperature

Mean Annual	60.5 °F
Daily Maximum - 07/22/1974	115 °F
Daily Minimum - 12/23/1989	-11 °F
Clinton, Oklahoma 1948-1996

Washita River

Drainage area above Foss Dam	1,454 mi²
Annual discharge:
Maximum - 1941	209,700 acre-ft
Minimum - 1953	6,400 acre-ft
Average	64,800 acre-ft

Cobb Creek

Drainage area above Fort Cobb Dam	315 mi²
Annual discharge
Maximum - 1949	56,050 acre-ft
Minimum - 1954	7,490 acre-ft
Average	24,750 acre-ft

Project Water Quality

Upper Washita
Washita Headwaters

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