Idaho Water Supply Committe Meeting April 12, 2012 By Art Hill Civil Engineer
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.
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.
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
Annual Windshield Snow Survey and Jackson Lake Operations Meeting will be held May 17 & 18, 2012 in Jackson, WY Any Questions?