US Army Corps of Engineers

McNary Dam

Wednesday January 28, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 187.20 184.40 0.00 339.17 267.52 71.65
2 187.80 185.00 0.00 339.22 267.51 71.71
3 188.30 185.50 0.00 339.13 267.60 71.53
4 189.10 186.30 0.00 339.03 267.69 71.34
5 189.30 186.50 0.00 339.06 267.60 71.46
6 188.20 185.40 0.00 339.03 267.54 71.49
7 157.20 154.40 0.00 339.00 266.83 72.17
8 154.20 151.40 0.00 339.10 266.72 72.38
9 154.60 151.80 0.00 339.18 266.85 72.33
10 154.50 151.70 0.00 339.22 266.80 72.42
11 154.40 151.60 0.00 339.28 266.80 72.48
12 154.60 151.80 0.00 339.52 266.83 72.69
13 153.90 151.10 0.00 339.38 266.65 72.73
14 153.70 150.90 0.00 339.43 266.70 72.73
15 153.30 150.50 0.00 339.48 266.74 72.74
16 153.30 150.50 0.00 339.63 266.67 72.96
17 153.10 150.30 0.00 339.56 266.71 72.85
18 155.80 150.30 2.70 339.55 266.76 72.79
19 173.60 150.70 20.10 339.60 266.95 72.65
20 173.30 150.30 20.20 339.62 266.88 72.74
21
22
23
24
AVG 166.47 161.52 2.15 339.31 267.02 72.29
MAX 189.30 186.50 20.20 339.63 267.69 72.96
MIN 153.10 150.30 0.00 339.00 266.65 71.34
BUILDING STRONG®