Priest Rapids Dam & Reservoir

May 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	16781	699	46	168.20	165.00	132.00	32.00	487.11	485.77	414.29	71.48
2				173.90	175.60	125.70	48.80	486.65	486.76	415.07	71.69
3				160.00	160.00	120.90	38.10	486.65	486.61	414.07	72.54
4				170.40	174.60	131.80	41.70	485.49	485.79	415.14	70.65
5				167.60	159.30	128.10	30.20	487.73	486.35	414.38	71.97
6				158.40	165.50	132.10	32.40	485.82	486.95	414.54	72.41
7				142.90	141.40	115.00	25.50	486.24	486.04	412.11	73.93
8				121.50	122.40	98.50	23.00	486.02	485.06	410.34	74.72
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TOT	16781		46
AVG	16781	699	46	157.86	157.98	123.01	33.96	486.46	486.17	413.74	72.42

MAX	16781			173.90	175.60	132.10	48.80	487.73	486.95	415.14	74.72
MIN	16781			121.50	122.40	98.50	23.00	485.49	485.06	410.34	70.65