Chief Joseph Dam & Rufus Woods Lake

August 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	29669	1236	24	84.70	93.00	93.00	0.00	952.90	953.00	781.30	171.70
2	25679	1070	24	79.30	80.50	80.50	0.00	952.60	952.40	780.90	171.50
3	27984	1166	24	90.60	88.30	88.30	0.00	953.20	952.50	781.20	171.30
4	28896	1204	24	91.70	91.30	91.30	0.00	953.30	952.20	781.60	170.60
5	28498	1187	25	90.80	89.60	89.60	0.00	953.60	952.60	781.60	171.00
6	30288	1262	24	93.30	95.60	95.60	0.00	953.00	953.00	782.10	170.90
7	29605	1234	24	99.60	93.00	93.00	0.00	954.70	952.40	781.10	171.30
8	28988	1208	24	89.80	90.60	90.60	0.00	954.50	953.20	781.00	172.20
9	28269	1178	24	82.40	88.60	88.60	0.00	952.90	953.10	781.00	172.10
10	27382	1141	25	87.90	86.30	86.30	0.00	953.30	952.40	781.50	170.90
11	29828	1243	25	98.40	94.10	94.10	0.00	954.40	952.50	782.10	170.40
12	32056	1336	25	95.00	101.60	101.60	0.00	952.70	952.40	782.20	170.20
13	29169	1215	25	91.20	92.00	92.00	0.00	952.50	952.50	781.80	170.70
14	29981	1249	24	93.90	95.10	95.10	0.00	952.20	952.10	782.10	170.00
15	28820	1201	24	90.80	90.80	90.80	0.00	952.20	952.10	782.10	170.00
16	25891	1079	24	84.40	81.30	81.30	0.00	953.00	951.70	781.30	170.40
17	28220	1176	25	91.20	88.90	88.90	0.00	953.60	952.30	781.50	170.80
18	27286	1137	26	81.10	86.50	86.50	0.00	952.20	952.10	781.90	170.20
19	27844	1160	25	94.00	87.00	87.00	0.00	954.00	952.50	780.90	171.60
20	31142	1298	25	100.00	98.00	98.00	0.00	954.50	953.40	781.20	172.20
21	29419	1226	25	84.40	92.20	92.20	0.00	952.50	952.60	781.40	171.20
22	22983	958	26	71.90	71.90	71.90	0.00	952.50	952.00	780.40	171.60
23	22780	949	25	71.00	71.80	71.80	0.00	952.30	951.70	780.50	171.20
24	26638	1110	25	90.70	83.30	83.30	0.00	954.20	953.00	781.40	171.60
25	31313	1305	26	98.00	99.20	99.20	0.00	953.90	952.20	781.90	170.30
26	30855	1286	26	95.70	97.30	97.30	0.00	953.50	953.00	781.60	171.40
27	26457	1102	26	80.00	82.30	82.30	0.00	952.90	952.90	780.40	172.50
28	24027	1001	25	74.30	73.90	73.90	0.00	953.00	953.30	779.40	173.90
29	22087	920	25	69.20	68.40	68.40	0.00	953.20	952.70	778.40	174.30
30	17970	749	26	59.60	54.90	54.90	0.00	954.40	953.60	778.30	175.30
31	29842	1243	25	97.50	95.60	93.10	2.50	954.90	954.30	781.30	173.00

TOT	859866		766
AVG	27738	1156	25	87.17	87.19	87.11	0.08	953.31	952.64	781.14	171.49

MAX	32056			100.00	101.60	101.60	2.50	954.90	954.30	782.20	175.30
MIN	17970			59.60	54.90	54.90	0.00	952.20	951.70	778.30	170.00