John Day & Lake Umatilla

November 2026

Day of Month	Inflow kcfs	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Midnight Reservoir Elevation	Average Forebay Elevation	Average Tailwater Elevation	Average Head feet
1	84.90	87.40	84.40	1.60	265.82	265.86	159.92	105.94
2	106.50	103.90	101.10	1.60	265.92	265.88	159.72	106.16
3	96.60	94.00	82.80	10.00	266.02	265.93	159.59	106.34
4	83.70	101.40	78.80	21.20	265.52	265.75	159.78	105.97
5	127.50	119.20	96.80	21.20	265.82	265.71	159.96	105.75
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TOT
AVG	99.84	101.18	88.78	11.12	265.82	265.83	159.79	106.03

MAX	127.50	119.20	101.10	21.20	266.02	265.93	159.96	106.34
MIN	83.70	87.40	78.80	1.60	265.52	265.71	159.59	105.75