Wanapum Dam

Tuesday August 4, 2026

Hour	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Forebay Elevation	Tailwater Elevation	Average Head
1	99.80	77.98	19.78	569.87	489.65	80.22
2	96.20	74.60	19.61	569.70	489.63	80.08
3	90.80	69.31	19.45	569.26	489.28	79.98
4	96.90	75.80	19.09	568.75	489.51	79.23
5	96.40	75.54	18.86	568.60	489.26	79.34
6	89.90	69.23	18.67	568.15	488.78	79.37
7	86.70	66.35	18.40	567.83	488.44	79.39
8	71.80	51.35	18.47	568.28	487.74	80.55
9	78.20	57.57	18.61	568.42	488.18	80.24
10	91.90	71.43	18.51	568.14	488.77	79.37
11	75.10	54.58	18.57	568.37	487.96	80.41
12	73.80	53.16	18.67	568.42	488.03	80.40
13	90.80	70.16	18.60	568.31	489.30	79.01
14	107.30	86.70	18.61	568.22	490.03	78.19
15	100.60	80.07	18.52	568.11	489.32	78.79
16	105.90	85.56	18.34	567.77	489.73	78.04
17	98.80	78.58	18.24	567.62	489.74	77.88
18	108.70	88.50	18.18	567.63	490.12	77.50
19	133.40	113.43	17.96	567.09	491.56	75.54
20	153.70	133.72	18.03	567.76	492.07	75.68
21	133.40	113.09	18.28	567.86	490.79	77.07
22	115.70	95.55	18.18	567.56	490.10	77.47
23	117.40	97.19	18.18	567.89	490.20	77.69
24	112.20	91.86	18.35	567.92	489.86	78.06

AVG	101.06	80.47	18.59	568.23	489.50	78.73

MAX	153.70	133.72	19.78	569.87	492.07	80.55
MIN	71.80	51.35	17.96	567.09	487.74	75.54