US Army Corps of Engineers

McNary Dam

Monday August 3, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 109.80 51.40 53.70 338.73 264.59 74.14
2 109.90 51.60 53.60 338.75 264.61 74.14
3 110.40 51.70 54.00 338.71 264.53 74.18
4 110.50 51.90 53.90 338.70 264.55 74.15
5 110.60 52.00 53.80 338.70 264.48 74.22
6 110.70 51.80 54.20 338.68 264.50 74.18
7 111.50 52.50 54.40 338.68 264.55 74.13
8 111.80 52.80 54.40 338.68 264.61 74.07
9 111.90 52.80 54.40 338.68 264.58 74.10
10 112.30 53.20 54.40 338.69 264.65 74.04
11 111.60 52.50 54.40 338.71 264.56 74.15
12 111.70 52.50 54.50 338.71 264.54 74.17
13 112.00 52.90 54.40 338.70 264.58 74.12
14 111.40 52.40 54.40 338.70 264.52 74.18
15 112.40 53.10 54.50 338.76 264.47 74.29
16 112.10 52.90 54.60 338.74 264.40 74.34
17 111.70 52.50 54.50 338.74 264.36 74.38
18 111.90 52.70 54.50 338.71 264.36 74.35
19 111.90 52.80 54.40 338.66 264.35 74.31
20 110.60 51.80 54.10 338.56 264.31 74.25
21 110.30 51.60 53.90 338.52 264.27 74.25
22 110.10 51.90 53.50 338.47 264.23 74.24
23 101.10 52.10 44.30 338.42 264.08 74.34
24 101.00 52.20 44.20 338.35 264.08 74.27
AVG 110.38 52.32 53.38 338.66 264.45 74.21
MAX 112.40 53.20 54.60 338.76 264.65 74.38
MIN 101.00 51.40 44.20 338.35 264.08 74.04
BUILDING STRONG®