US Army Corps of Engineers

McNary Dam

Saturday June 20, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 159.60 62.10 92.80 339.12 265.04 74.08
2 160.60 62.90 93.00 339.15 265.12 74.03
3 161.00 63.10 93.20 339.18 265.03 74.15
4 160.80 63.00 93.00 339.16 265.08 74.08
5 161.00 63.10 93.20 339.19 265.18 74.01
6 160.60 62.70 93.20 339.19 265.14 74.05
7 150.40 52.40 93.30 339.23 264.96 74.27
8 149.90 51.90 93.40 339.26 264.96 74.30
9 150.90 52.80 93.50 339.28 265.07 74.21
10 149.90 51.70 93.40 339.35 265.13 74.22
11 149.50 51.70 93.20 339.35 265.26 74.09
12 149.40 51.50 93.20 339.36 265.37 73.99
13 150.60 52.50 93.40 339.47 265.15 74.32
14 150.60 52.30 93.60 339.50 265.10 74.40
15 151.10 53.00 93.40 339.52 265.13 74.39
16 149.90 51.90 93.30 339.55 265.18 74.37
17 149.90 51.80 93.40 339.55 265.25 74.30
18 151.00 52.90 93.40 339.57 265.23 74.34
19 150.40 52.30 93.40 339.60 265.30 74.30
20 148.70 50.60 93.40 339.57 265.26 74.31
21 148.20 50.10 93.40 339.61 265.31 74.30
22 149.60 51.40 93.50 339.61 265.39 74.22
23 150.80 52.40 93.70 339.65 265.36 74.29
24 150.50 52.40 93.40 339.65 265.28 74.37
AVG 152.70 54.69 93.32 339.40 265.18 74.22
MAX 161.00 63.10 93.70 339.65 265.39 74.40
MIN 148.20 50.10 92.80 339.12 264.96 73.99