John Day & Lake Umatilla

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	33386	1391	50	178.20	178.20	177.70	0.00	265.92	265.94	161.66	104.28
2	33310	1388	51	176.20	178.80	178.40	0.00	265.82	265.86	162.13	103.73
3	32671	1361	52	174.70	174.70	174.30	0.00	265.82	265.83	161.68	104.15
4	32556	1357	51	164.00	174.50	174.10	0.00	265.42	265.64	161.72	103.92
5	31469	1311	50	169.40	169.40	169.00	0.00	265.42	265.45	161.85	103.60
6	31770	1324	50	165.60	170.90	170.50	0.00	265.22	265.29	161.67	103.62
7	31574	1316	49	175.30	170.10	169.70	0.00	265.42	265.21	161.66	103.55
8								265.82
9								265.52
10								265.42
11								264.82
12								265.12
13								265.52
14								265.92
15								266.02
16								265.72
17								265.72
18								265.52
19								265.42
20								266.22
21								266.12
22								265.82
23								266.02
24								265.52
25								265.52
26								265.72
27								265.82
28								265.82
29								265.62
30								265.32
31								265.62

TOT	226737		354
AVG	32391	1350	50	171.91	173.80	173.39	0.00	265.64	265.60	161.77	103.84

MAX	33386			178.20	178.80	178.40	0.00	266.22	265.94	162.13	104.28
MIN	31469			164.00	169.40	169.00	0.00	264.82	265.21	161.66	103.55