Wanapum Dam & Lake

December 2025

Day of Month	Total Generation MWh	Average Generation MW	Station Use MWh	Inflow kcfs	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Midnight Reservoir Elevation	Average Forebay Elevation	Average Tailwater Elevation	Average Head feet
1	14102	588	18	97.50	102.30	100.90	0.00	567.72	568.30	489.96	78.34
2				97.50	99.50	98.10	0.00	567.43	568.13	489.74	78.39
3				98.10	98.50	97.10	0.00	567.38	567.07	489.67	77.40
4				105.60	94.50	93.10	0.00	568.93	567.33	489.29	78.04
5				135.70	130.30	128.90	0.00	569.68	568.93	491.48	77.45
6				113.50	126.50	125.10	0.00	567.88	568.65	491.30	77.35
7				106.50	109.10	107.70	0.00	567.52	567.59	490.70	76.89
8				115.20	105.50	104.10	0.00	568.87	568.47	490.50	77.97
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TOT	14102		18
AVG	14102	588	18	108.70	108.28	106.88	0.00	568.17	568.06	490.33	77.73

MAX	14102			135.70	130.30	128.90	0.00	569.68	568.93	491.48	78.39
MIN	14102			97.50	94.50	93.10	0.00	567.38	567.07	489.29	76.89