US Army Corps of Engineers

McNary Dam

Friday July 31, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 116.10 51.70 59.70 338.59 264.02 74.57
2 115.70 51.30 59.80 338.64 264.07 74.57
3 115.90 51.50 59.70 338.56 264.08 74.48
4 116.30 52.00 59.60 338.60 264.12 74.48
5 116.20 51.70 59.70 338.59 264.10 74.49
6 116.50 51.60 60.20 338.59 264.10 74.49
7 116.10 51.20 60.20 338.56 264.16 74.40
8 116.60 51.80 60.10 338.56 264.22 74.34
9 116.80 52.00 60.10 338.53 264.24 74.29
10 116.80 52.00 60.00 338.52 264.26 74.26
11 116.90 52.20 59.90 338.50 264.26 74.24
12 116.90 52.30 59.90 338.50 264.31 74.19
13 117.30 52.40 60.20 338.46 264.28 74.18
14 126.10 52.30 69.10 338.41 264.43 73.98
15 124.80 52.30 67.90 338.49 264.41 74.08
16 124.90 52.20 68.00 338.48 264.43 74.05
17 124.00 51.40 67.90 338.47 264.46 74.01
18 124.60 52.00 67.90 338.46 264.44 74.02
19 124.60 51.90 68.00 338.48 264.29 74.19
20 123.70 51.00 68.00 338.48 264.15 74.33
21 123.80 51.10 68.00 338.52 264.14 74.38
22 124.30 51.40 68.10 338.54 264.20 74.34
23 124.80 51.90 68.30 338.59 264.14 74.45
24 124.70 51.90 68.10 338.61 264.22 74.39
AVG 120.18 51.80 63.68 338.53 264.23 74.30
MAX 126.10 52.40 69.10 338.64 264.46 74.57
MIN 115.70 51.00 59.60 338.41 264.02 73.98
BUILDING STRONG®