US Army Corps of Engineers

McNary Dam

Monday May 4, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 218.40 53.80159.90 337.33 267.10 70.23
2 218.80 54.20160.00 337.36 267.11 70.25
3 218.60 53.90160.00 337.37 267.10 70.27
4 218.70 54.00160.00 337.36 267.10 70.26
5 219.00 54.30160.10 337.39 267.04 70.35
6 219.30 54.60160.00 337.36 267.16 70.20
7 219.00 54.30160.00 337.39 267.07 70.32
8 218.60 53.70160.20 337.39 267.10 70.29
9 218.20 53.30160.20 337.40 267.11 70.29
10 218.70 53.70160.30 337.44 267.02 70.42
11 219.00 54.00160.40 337.43 267.01 70.42
12 218.70 53.40160.60 337.46 267.01 70.45
13 219.70 54.30160.70 337.50 267.03 70.47
14 220.00 54.20161.10 337.59 267.00 70.59
15 221.40 55.30161.40 337.63 267.03 70.60
16 220.50 54.00161.80 337.71 266.97 70.74
17 222.80 56.00162.10 337.75 266.96 70.79
18 223.10 55.90162.50 337.82 266.91 70.91
19 220.40 54.40161.30 337.89 266.93 70.96
20 221.10 54.80161.60 337.95 266.93 71.02
21 219.30 52.50162.10 338.03 266.94 71.09
22 220.00 54.00161.40 338.07 266.99 71.08
23 244.70 53.80186.20 337.98 267.48 70.50
24 246.50 54.20187.60 338.08 267.48 70.60
AVG 221.85 54.19162.98 337.61 267.07 70.55
MAX 246.50 56.00187.60 338.08 267.48 71.09
MIN 218.20 52.50159.90 337.33 266.91 70.20