Rocky Reach Dam & Lake

June 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	22855	952	0	160.22	158.07	144.38	13.36	705.96	705.64	620.46	85.18
2	25559	1065	0	184.12	179.76	165.85	13.60	706.55	706.55	622.15	84.40
3	25931	1080	0	184.62	184.18	168.29	15.57	706.45	706.55	622.36	84.19
4	25318	1055	0	172.15	179.75	165.13	14.30	704.92	705.97	621.87	84.10
5	22256	927	0	159.17	155.75	140.07	15.34	706.25	705.55	620.14	85.41
6	23050	960	0	160.08	160.09	143.00	16.74	706.11	706.36	620.54	85.82
7	21490	895	0	159.11	160.80	134.26	26.21	705.74	706.45	620.57	85.88
8	24556	1023	0	169.24	170.13	155.66	14.15	705.26	705.91	621.12	84.79
9	20695	862	0	141.02	141.61	126.78	14.53	705.83	705.99	619.20	86.79
10	15962	665	0	101.79	109.00	97.08	11.60	704.90	705.58	616.86	88.72
11	20073	836	0	138.95	135.53	123.70	11.53	705.10	705.20	618.70	86.50
12	19844	827	0	137.91	136.88	123.36	13.22	705.35	705.21	618.81	86.40
13	22002	917	0	150.29	150.29	136.91	13.04	704.99	706.02	619.83	86.19
14	22365	932	0	153.28	155.43	141.34	13.77	704.37	705.66	619.89	85.77
15	22341	931	0	159.63	155.17	140.78	14.06	705.41	705.67	620.02	85.65
16				143.07	146.65	130.87	15.45	704.81	705.95	619.37	86.58
17				111.63	111.00	97.72	12.98	705.72	704.83	616.96	87.87
18				118.49	120.79	107.50	12.99	705.00	704.68	617.36	87.32
19				152.30	147.38	135.57	11.47	705.54	705.91	619.29	86.62
20				86.19	97.82	87.12	10.39	703.97	705.37	616.00	89.37
21				98.95	97.08	85.40	11.38	704.40	704.90	615.96	88.94
22				125.99	120.76	107.68	12.76	705.13	705.40	617.51	87.89
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TOT	334297		0
AVG	22286	929	0	144.01	144.27	129.93	14.02	705.35	705.70	619.32	86.38

MAX	25931			184.62	184.18	168.29	26.21	706.55	706.55	622.36	89.37
MIN	15962			86.19	97.08	85.40	10.39	703.97	704.68	615.96	84.10