US Army Corps of Engineers

Grand Coulee Dam

Wednesday December 3, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 60.60 60.60 0.00 1284.80 956.90 327.90
2 55.30 55.30 0.00 1284.80 956.50 328.30
3 50.90 50.90 0.00 1284.90 956.40 328.50
4 56.20 56.20 0.00 1284.90 956.60 328.30
5 69.40 69.40 0.00 1284.80 957.70 327.10
6 90.80 90.80 0.00 1284.80 959.20 325.60
7 106.60 106.60 0.00 1284.70 960.80 323.90
8 122.90 122.90 0.00 1284.70 962.30 322.40
9 119.40 119.40 0.00 1284.80 962.40 322.40
10 117.30 117.30 0.00 1284.80 962.30 322.50
11 116.90 116.90 0.00 1284.80 962.40 322.40
12 104.00 104.00 0.00 1284.80 961.50 323.30
13 94.00 94.00 0.00 1284.80 960.80 324.00
14 94.70 94.70 0.00 1284.70 960.60 324.10
15 99.60 99.60 0.00 1284.70 960.80 323.90
16 122.90 122.90 0.00 1284.70 962.50 322.20
17 117.00 117.00 0.00 1284.60 962.80 321.80
18 124.80 124.80 0.00 1284.60 963.30 321.30
19 110.10 110.10 0.00 1284.60 962.40 322.20
20 103.70 103.70 0.00 1284.60 961.70 322.90
21 92.00 92.00 0.00 1284.60 960.60 324.00
22 85.10 85.10 0.00 1284.70 959.90 324.80
23 86.10 86.10 0.00 1284.60 959.70 324.90
24 81.10 81.10 0.00 1284.70 959.30 325.40
AVG 95.06 95.06 0.00 1284.73 960.39 324.34
MAX 124.80 124.80 0.00 1284.90 963.30 328.50
MIN 50.90 50.90 0.00 1284.60 956.40 321.30