Priest Rapids Dam & Reservoir

July 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	15928	664	49	146.40	148.20	121.80	25.70	486.44	486.09	411.82	74.27
2	16104	671	50	145.30	149.20	124.00	24.60	485.35	485.69	412.01	73.68
3	14553	606	50	135.40	135.20	111.70	22.90	485.41	485.07	410.93	74.14
4	14071	586	50	133.80	131.50	106.60	24.40	486.06	485.65	410.57	75.08
5	14939	622	49	135.70	138.70	114.30	23.80	485.22	485.39	411.15	74.24
6	16149	673	50	138.90	142.20	126.70	14.80	484.28	484.70	411.50	73.20
7	12917	538	51	116.90	112.50	98.60	13.40	485.54	484.37	409.16	75.21
8	10461	436	50	98.30	100.00	77.50	22.10	485.06	484.77	407.99	76.78
9	10659	444	49	103.00	101.40	79.10	21.90	485.49	484.72	408.19	76.53
10	11195	466	50	105.60	106.40	83.10	22.90	485.24	485.09	408.50	76.59
11	9222	384	48	94.30	91.30	67.00	23.80	486.09	485.46	407.09	78.37
12	12233	510	49	110.50	116.30	91.20	24.60	484.44	485.67	409.38	76.29
13	13149	548	50	123.70	122.30	101.90	19.90	484.85	484.01	409.95	74.06
14	10366	432	45	96.40	98.60	78.10	19.90	484.21	483.89	407.76	76.13
15	11866	494	50	109.70	110.90	90.70	19.70	483.84	483.81	408.95	74.86
16	10565	440	51	107.40	101.20	78.40	22.40	485.61	484.90	408.09	76.81
17	7447	310	46	75.60	76.00	53.10	22.40	485.50	484.90	405.82	79.08
18	7355	306	46	83.20	78.20	51.90	25.80	486.87	486.18	405.96	80.22
19	10294	429	47	102.30	102.30	74.40	27.30	486.87	486.63	408.08	78.55
20	10961	457	50	108.00	107.20	79.00	27.80	487.06	486.79	408.61	78.18
21	10190	425	51	97.10	101.60	73.80	27.40	485.83	486.63	408.05	78.58
22	9684	404	48	97.70	96.20	70.00	25.70	486.24	486.10	407.67	78.43
23	11855	494	52	113.40	112.00	88.80	22.70	486.61	485.02	409.02	76.00
24	12716	530	51	112.30	118.70	96.70	21.50	484.82	484.48	409.69	74.79
25	8414	351	51	86.50	82.80	60.90	21.70	485.85	484.61	406.44	78.17
26	9573	399	50	90.90	93.90	69.50	24.00	485.00	485.48	407.46	78.02
27	10819	451	51	103.60	102.90	80.20	22.30	485.20	484.86	408.26	76.60
28	11205	467	51	95.60	95.30	82.00	12.90	485.30	484.90	407.68	77.22
29	11379	474	51	110.40	108.30	84.30	23.50	485.90	485.33	408.78	76.55
30	8279	345	50	84.60	83.70	59.40	23.90	486.14	485.48	406.58	78.90
31				110.10	112.40	87.60	24.40	485.49	485.62	408.98	76.64

TOT	344548		1486
AVG	11485	479	50	108.79	108.95	85.88	22.58	485.54	485.24	408.71	76.52

MAX	16149			146.40	149.20	126.70	27.80	487.06	486.79	412.01	80.22
MIN	7355			75.60	76.00	51.90	12.90	483.84	483.81	405.82	73.20