US Army Corps of Engineers

Grand Coulee Dam

Monday April 13, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 111.10 111.10 0.00 1252.90 962.10 290.80
2 108.60 108.60 0.00 1252.90 962.10 290.80
3 104.10 104.10 0.00 1252.90 961.70 291.20
4 107.50 107.50 0.00 1252.80 961.60 291.20
5 110.40 110.40 0.00 1252.80 961.90 290.90
6 131.40 131.40 0.00 1252.80 963.50 289.30
7 127.80 127.80 0.00 1252.80 963.80 289.00
8 119.30 119.30 0.00 1252.80 963.20 289.60
9 98.00 98.00 0.00 1252.80 961.60 291.20
10 96.90 96.90 0.00 1252.80 961.10 291.70
11 92.10 92.10 0.00 1252.80 960.70 292.10
12 89.20 89.20 0.00 1252.90 960.40 292.50
13 85.60 85.60 0.00 1252.90 960.00 292.90
14 79.70 79.70 0.00 1252.90 959.50 293.40
15
16
17
18
19
20
21
22
23
24
AVG 104.41 104.41 0.00 1252.84 961.66 291.19
MAX 131.40 131.40 0.00 1252.90 963.80 293.40
MIN 79.70 79.70 0.00 1252.80 959.50 289.00