McNary Dam & Lake Wallula

July 2025

Day of Month	Inflow kcfs	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Midnight Reservoir Elevation	Average Forebay Elevation	Average Tailwater Elevation	Average Head feet
1	138.00	148.40	73.80	69.90	338.25	338.72	264.89	73.83
2	149.00	144.40	54.50	85.20	338.50	338.40	265.05	73.35
3	141.00	138.80	51.90	82.20	338.59	338.52	264.63	73.89
4	129.30	125.00	52.70	67.60	338.81	338.60	264.57	74.03
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TOT
AVG	139.32	139.15	58.23	76.22	338.54	338.56	264.79	73.78

MAX	149.00	148.40	73.80	85.20	338.81	338.72	265.05	74.03
MIN	129.30	125.00	51.90	67.60	338.25	338.40	264.57	73.35