Priest Rapids Dam & Reservoir

March 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	18144	756	38	142.40	139.80	139.30	0.00	487.07	486.40	412.40	74.00
2	17273	720	39	126.50	131.20	130.70	0.00	485.78	486.25	411.75	74.50
3	16909	705	39	131.40	130.90	129.00	1.00	485.92	485.83	411.67	74.16
4	15112	630	38	115.60	114.70	113.60	0.00	486.18	485.10	410.34	74.76
5	15026	626	38	117.10	114.40	113.30	0.00	486.91	484.82	410.30	74.52
6	16215	676	38	133.70	131.30	121.50	8.60	487.53	486.84	411.64	75.20
7	14957	623	38	141.70	145.90	113.90	30.80	486.38	486.66	412.47	74.19
8	14536	606	36	130.70	133.30	115.60	16.70	485.68	485.56	411.63	73.93
9	15650	652	39	124.70	122.90	121.60	0.10	485.82	485.07	411.14	73.93
10	14938	622	40	116.70	120.30	116.10	3.00	485.47	484.99	410.98	74.01
11	13697	571	40	151.70	144.50	104.90	38.40	487.01	486.61	412.27	74.34
12	14716	613	44	136.00	142.10	114.50	26.30	485.68	485.82	412.25	73.57
13	16680	695	44	153.30	152.50	130.80	20.60	485.70	486.02	413.14	72.88
14	14992	625	44	136.60	135.10	115.40	18.50	486.19	485.78	411.66	74.12
15	17928	747	44	138.30	142.00	140.80	0.00	485.23	485.65	412.58	73.07
16				110.10	102.00	101.00	0.00	487.25	485.26	409.11	76.15
17				114.40	114.50	108.90	4.40	487.24	486.47	410.12	76.35
18				126.80	128.60	112.00	15.60	486.65	487.21	411.25	75.96
19				121.60	123.70	116.00	6.80	486.58	486.18	411.01	75.17
20				156.80	153.00	126.30	25.70	487.50	487.22	413.14	74.08
21				162.70	165.10	148.90	15.10	486.49	486.84	414.24	72.60
22				160.40	163.20	162.10	0.00	485.73	486.40	414.30	72.10
23								485.81
24
25
26
27
28
29
30
31

TOT	236773		599
AVG	15785	658	40	134.05	134.14	122.55	10.53	486.34	486.04	411.79	74.25

MAX	18144			162.70	165.10	162.10	38.40	487.53	487.22	414.30	76.35
MIN	13697			110.10	102.00	101.00	0.00	485.23	484.82	409.11	72.10