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Pacific Northwest Region
Boise, Idaho
Media Contact:
John Redding
(208) 378-5212
Chuck Garner
(509) 575-5848 ext. 205

Released On: May 06, 2013

Yakima Basin Water Supply - May Forecast Released
YAKIMA, Wash. - The Bureau of Reclamation's May 2013, Total Water Supply Available (TWSA) forecast for the Yakima Basin indicates a full water supply for both senior and junior water rights.

"The water conditions at the end of April in the Yakima Basin have reservoir levels above average while snowpack is near average at most sites and below average at a few." said Chuck Garner, Yakima Project River Operations supervisor.

At this time both junior and senior water rights holders are expected to receive their full water supply. The water supply forecast will be updated each month through July. Specific water delivery levels will not be determined until later in the year when the reservoir system's storage begins to decline.

The May TWSA forecast is based on flows, precipitation, snowpack, and reservoir storage as of May 1, along with estimates of future precipitation and river flows. Other future weather conditions that determine the timing of the run-off and the demand for water are also critical in determining streamflows, reservoir storage, and the water supply available. "The upcoming spring and summer weather will have an impact on crop demands and stream flow levels. Water saved through good irrigation practices will help increase the amount of water in the reservoirs at the end of the season," Garner said.

For more information visit our website at http://www.usbr.gov/pn/hydromet/yakima.

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Reclamation is the largest wholesale water supplier and the second largest producer of hydroelectric power in the United States, with operations and facilities in the 17 Western States. Its facilities also provide substantial flood control, recreation, and fish and wildlife benefits. Visit our website at www.usbr.gov.