US Army Corps of Engineers

Grand Coulee Dam

Monday October 13, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 50.00 50.00 0.00 1285.70 955.40 330.30
2 48.70 48.70 0.00 1285.80 955.60 330.20
3 49.50 49.50 0.00 1285.80 955.70 330.10
4 49.50 49.50 0.00 1285.80 955.70 330.10
5 58.50 58.50 0.00 1285.80 956.50 329.30
6 67.60 67.60 0.00 1285.80 957.40 328.40
7 79.50 79.50 0.00 1285.70 958.30 327.40
8 91.50 91.50 0.00 1285.70 959.40 326.30
9 85.80 85.80 0.00 1285.70 959.20 326.50
10 82.40 82.40 0.00 1285.80 958.40 327.40
11 79.20 79.20 0.00 1285.70 958.00 327.70
12 84.40 84.40 0.00 1285.70 958.40 327.30
13 75.10 75.10 0.00 1285.70 957.90 327.80
14 70.50 70.50 0.00 1285.70 957.30 328.40
15 71.50 71.50 0.00 1285.60 957.20 328.40
16 78.50 78.50 0.00 1285.60 957.60 328.00
17 93.90 93.90 0.00 1285.60 959.20 326.40
18 88.90 88.90 0.00 1285.60 959.30 326.30
19 94.00 94.00 0.00 1285.50 959.70 325.80
20 101.30 101.30 0.00 1285.50 960.40 325.10
21 100.00 100.00 0.00 1285.50 960.70 324.80
22 81.20 81.20 0.00 1285.50 959.40 326.10
23 77.40 77.40 0.00 1285.50 958.80 326.70
24 53.20 53.20 0.00 1285.50 957.30 328.20
AVG 75.50 75.50 0.00 1285.66 958.03 327.63
MAX 101.30 101.30 0.00 1285.80 960.70 330.30
MIN 48.70 48.70 0.00 1285.50 955.40 324.80