US Army Corps of Engineers

Grand Coulee Dam

Saturday December 6, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 99.60 99.60 0.00 1283.70 960.20 323.50
2 99.40 99.40 0.00 1283.70 960.10 323.60
3 93.70 93.70 0.00 1283.70 959.80 323.90
4 92.80 92.80 0.00 1283.70 959.50 324.20
5 99.00 99.00 0.00 1283.70 959.90 323.80
6 100.60 100.60 0.00 1283.60 960.20 323.40
7 93.50 93.50 0.00 1283.60 959.90 323.70
8 95.60 95.60 0.00 1283.60 959.90 323.70
9 91.70 91.70 0.00 1283.60 959.70 323.90
10 95.00 95.00 0.00 1283.50 959.80 323.70
11 91.90 91.90 0.00 1283.50 959.80 323.70
12 90.20 90.20 0.00 1283.50 959.60 323.90
13 85.70 85.70 0.00 1283.50 959.30 324.20
14 86.10 86.10 0.00 1283.50 959.10 324.40
15 86.20 86.20 0.00 1283.50 959.10 324.40
16 116.10 116.10 0.00 1283.50 961.40 322.10
17 127.40 127.40 0.00 1283.40 962.90 320.50
18 141.10 141.10 0.00 1283.30 964.20 319.10
19 133.10 133.10 0.00 1283.30 964.10 319.20
20 110.70 110.70 0.00 1283.40 962.20 321.20
21 98.10 98.10 0.00 1283.40 960.70 322.70
22 93.80 93.80 0.00 1283.40 960.20 323.20
23 103.60 103.60 0.00 1283.30 960.70 322.60
24 102.80 102.80 0.00 1283.20 961.10 322.10
AVG 101.15 101.15 0.00 1283.50 960.56 322.95
MAX 141.10 141.10 0.00 1283.70 964.20 324.40
MIN 85.70 85.70 0.00 1283.20 959.10 319.10