McNary Dam & Lake Wallula

November 2026

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	8325	347	125	84.00	84.00	62.20	17.10	338.73	338.96	266.07	72.89
2	10827	451	120	104.30	102.10	85.90	11.50	338.83	339.06	266.46	72.60
3	9547	398	120	91.30	97.20	75.30	17.30	338.51	338.85	266.31	72.54
4				90.70	93.10	70.00	18.30	338.38	338.56	266.12	72.44
5				116.90	119.00	95.70	18.70	338.30	338.62	266.70	71.92
6				100.90	108.00	85.60	17.70	337.90	338.15	266.36	71.79
7				103.40	100.90	78.50	17.70	338.01	338.22	265.96	72.26
8				106.90	106.90	85.70	16.60	338.03	338.29	266.03	72.26
9				92.80	98.10	76.20	17.20	337.74	338.06	265.44	72.62
10				117.60	111.20	89.40	17.20	338.05	338.37	265.70	72.67
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TOT	28699		365
AVG	9566	399	122	100.88	102.05	80.45	16.93	338.25	338.51	266.12	72.40

MAX	10827			117.60	119.00	95.70	18.70	338.83	339.06	266.70	72.89
MIN	8325			84.00	84.00	62.20	11.50	337.74	338.06	265.44	71.79