Washington Reservoirs

Water Levels Capacity Storage
March 26 2023


Reservoir Report

March 26 2023


Location Observation 24hr Change (%) Percent Normal (%) Elevation (ft)
Wynoochee Lake Near Grisdale
Washington ID 12035380
769 ft 0.05 100 708.35
Mud Mountain Lake Near Buckley
Washington ID 12098000
920 ft -0.04 100 1253.15
Lake Tapps Near Sumner
Washington ID 12101000
538 ft -0.01 100 531.36
Howard A Hanson Reservoir Near Palmer
Washington ID 12105800
1,115 ft 0.13 100 1206
Chester Morse Lake At Cedar Falls
Washington ID 12115900
1,550 ft 0 100 1565.28
Cedar Lake (Masonry Pool) Near Cedar Falls
Washington ID 12116060
1,540 ft 0.03 100 1548.55
Sammamish Lake Near Redmond
Washington ID 12122000
26 ft 0.11 99 33
South Fork Tolt Reservoir Near Carnation
Washington ID 12147900
1,743 ft 0.01 100 1771
Diablo Reservoir Near Newhalem
Washington ID 12176500
1,201 ft -0.03 None 1046.7
Baker Lake At Upper Baker Dam Near Concrete
Washington ID 12191600
699 ft 0.07 100 730
Lake Shannon At Concrete
Washington ID 12193000
395 ft -0.31 97 443
Franklin Roosevelt Lake At Grand Coulee Dam
Washington ID 12436000
1,284 ft 0 101 1175.16
Osoyoos Lake Near Oroville
Washington ID 12439000
910 ft 0 100 908.56
Lake Chelan At Purple Point At Stehekin
Washington ID 12451200
1,084 ft 0 100 1093.1
Lake Chelan At Chelan
Washington ID 12452000
1,085 ft 0 100 1100
Lenore Lk Near Soap Lk
Washington ID 12469500
1,078 ft 0 100 1084.47
Soap Lk Near Soap Lk
Washington ID 12470000
1,071 ft 0 100 1078.46
Moses Lake At Moses Lake
Washington ID 12471000
1,042 ft 0.02 100 1050
Lake Scanewa Near Kosmos
Washington ID 14233490
-999,999 ft None None 827.97
Castle Lake Nr Mount St Helens Nr Spirit Lake
Washington ID 14240446
2,578 ft 0 100 2579.71

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Largest Reservoirs

By water storage capacity
Reservoir Storage Capacity (acre-ft)

Drought Levels

By water storage capacity
Reservoir Storage Capacity (acre-ft) Percent of Normal (%)

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