McNary Dam & Lake Wallula

September 2021

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	12711	530	96	89.10	105.60	100.90	0.00	338.28	338.62	264.65	73.97
2	13584	566	96	129.90	113.90	109.20	0.00	339.15	338.91	264.96	73.95
3	13408	559	96	109.00	111.80	107.10	0.00	338.97	339.22	265.51	73.71
4	10896	454	96	95.70	90.80	86.10	0.00	339.24	339.34	265.60	73.74
5	10201	425	96	82.30	85.50	80.80	0.00	339.07	339.23	265.63	73.60
6	8650	360	96	73.40	72.90	68.20	0.00	339.11	339.13	265.43	73.70
7	11025	459	96	90.20	92.80	88.10	0.00	338.97	339.16	265.96	73.20
8	11260	469	96	99.20	94.90	90.20	0.00	339.19	339.25	266.33	72.92
9	11289	470	96	97.30	94.90	90.20	0.00	339.32	339.42	266.36	73.06
10	7940	331	96	69.50	67.60	62.90	0.00	339.28	339.46	265.91	73.55
11	7535	314	96	63.10	64.20	59.50	0.00	339.24	339.23	265.56	73.67
12	8146	339	96	75.50	68.90	64.20	0.00	339.57	339.46	265.59	73.87
13	10323	430	96	75.90	86.90	82.20	0.00	338.99	339.24	265.96	73.28
14	9770	407	96	81.90	82.40	77.70	0.00	338.96	339.01	265.80	73.21
15	8488	354	96	72.90	72.20	67.50	0.00	338.77	338.88	265.82	73.06
16	8583	358	96	80.60	72.90	68.20	0.00	339.20	339.03	265.80	73.23
17	10255	427	96	85.00	86.20	81.50	0.00	339.13	339.26	265.96	73.30
18	9051	377	96	78.10	76.70	72.00	0.00	339.22	339.24	266.06	73.18
19	8185	341	96	70.30	69.60	64.90	0.00	339.21	339.17	266.04	73.13
20	10194	425	96	70.70	87.40	82.70	0.00	338.28	338.86	266.07	72.79
21				80.30	79.80	75.10	0.00	338.35	338.42	265.92	72.50
22				83.40	81.60	76.90	0.00	338.46	338.49	265.87	72.62
23				85.90	86.20	81.50	0.00	338.44	338.48	265.84	72.64
24				108.40	103.90	99.20	0.00		338.60	266.28	72.32
25				85.20	86.50	81.80	0.00	338.65	338.69	266.06	72.63
26				77.60	77.10	72.40	0.00	338.67	338.78	265.90	72.88
27				94.40	82.30	77.60	0.00	339.30	339.18	266.02	73.16
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30

TOT	201493		1920
AVG	10075	420	96	85.36	85.02	80.32	0.00	338.96	339.03	265.81	73.22

MAX	13584			129.90	113.90	109.20	0.00	339.57	339.46	266.36	73.97
MIN	7535			63.10	64.20	59.50	0.00	338.28	338.42	264.65	72.32