Wanapum Dam & Lake

May 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	15894	662	20	153.70	139.90	113.20	24.70	571.02	570.48	491.84	78.64
2	15109	630	20	148.40	148.60	107.50	39.10	570.98	570.91	492.29	78.62
3	12562	523	19	100.20	110.60	88.10	20.40	569.56	570.35	490.67	79.68
4	13220	551	19	112.70	115.30	94.10	19.20	569.21	569.17	490.70	78.47
5	15179	632	19	122.30	130.90	110.10	18.80	568.01	568.56	491.42	77.14
6	15949	665	19	147.40	137.00	116.00	19.00	569.45	568.97	491.65	77.32
7	15034	626	19	138.10	129.30	107.90	19.40	570.66	569.53	491.11	78.42
8	16670	695	19	135.30	142.00	119.00	21.00	569.75	570.57	491.83	78.74
9	16278	678	19	157.30	146.00	115.70	28.30	571.29	570.61	491.78	78.83
10	16854	702	18	143.80	151.40	120.80	28.60	570.25	570.70	492.43	78.27
11	16452	686	18	127.90	139.90	118.50	19.40	568.59	569.46	491.83	77.63
12	15587	649	18	142.10	133.50	112.20	19.20	569.78	569.25	491.29	77.96
13				117.70	131.40	110.60	18.80	567.89	568.52	491.14	77.38
14				118.20	109.90	85.70	22.20	569.04	568.29	489.60	78.69
15				137.40	125.00	103.10	19.90	570.74	570.19	490.28	79.91
16				117.00	139.00	118.10	18.90	567.70	568.62	491.87	76.75
17				106.70	120.50	100.60	17.90	565.77	567.18	490.81	76.37
18				81.40	81.40	62.20	17.20	565.77	565.48	488.11	77.37
19				125.00	115.30	95.90	17.40	567.13	566.58	490.61	75.97
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31

TOT	184788		227
AVG	15399	642	19	128.03	128.78	105.23	21.55	569.08	569.13	491.12	78.01

MAX	16854			157.30	151.40	120.80	39.10	571.29	570.91	492.43	79.91
MIN	12562			81.40	81.40	62.20	17.20	565.77	565.48	488.11	75.97