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Idaho Water Supply Committe Meeting April 12, 2012 By Art Hill Civil Engineer.

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Presentation on theme: "Idaho Water Supply Committe Meeting April 12, 2012 By Art Hill Civil Engineer."— Presentation transcript:

1 Idaho Water Supply Committe Meeting April 12, 2012 By Art Hill Civil Engineer

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3 Major Storage Reservoirs in the Upper Snake River Basin Upper Snake River system (Jackson Lake, Palisades, Grassy Lake, Island Park, Ririe, American Falls, Lake Walcott) is at 69% of capacity (2,798,951 AF). Total space available: 1,246,744 AF with a Total storage capacity: 4,045,695 AF.

4 Major Storage Reservoirs in the Upper Snake River Basin Upper Snake River system (Jackson Lake, Palisades, Grassy Lake, Island Park, Ririe, American Falls, Lake Walcott) is at 83% of capacity (3,385,057 AF). Total space available is 660,638 AF with a total storage capacity of 4,045,695 AF.

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13 Water Year 1985 April-July Heise Runoff was 2,992.0 Kaf Water Year 2000 April-July Heise Runoff was 2,646.0 Kaf Water Year 1985 April-July Jackson Runoff was Kaf Water Year 2000 April-July Jackson Runoff was Kaf CURRENT MONTHLY FORECAST SUMMARY APRIL 1, | | | | NORMAL | 120% NORMAL | 80% NORMAL | | | | | SUBSEQUENT | SUBSEQUENT | SUBSEQUENT | | | | | CONDITIONS | CONDITIONS | CONDITIONS | | | | | | | | | |FORECAST | AVERAGE |FORECAST PERCENT |FORECAST PERCENT |FORECAST PERCENT | | FORECAST |PERIOD | (1000AF) |(1000AF) NORMAL |(1000AF) NORMAL |(1000AF) NORMAL | | | | | AVE NORM % HIGH % LOW % | | | HEISE APR-JUL *** 97 | | ISLAND PARK APR-JUL | | JACKSON LAKE APR-JUL | | LITTLE WOOD APR-JUL *** 92 | | RIRIE_NEW APR-JUN *** 65 | | TETON APR-JUL | | |_________________________________________________________________________________________________________| *** Coordinated with Corps of Engineers

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33 Annual Windshield Snow Survey and Jackson Lake Operations Meeting will be held May 17 & 18, 2012 in Jackson, WY Any Questions?


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