US Army Corps of Engineers

Grand Coulee Dam

Tuesday June 17, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 79.50 79.50 0.00 1283.90 958.40 325.50
2 74.10 74.10 0.00 1283.90 958.00 325.90
3 74.90 74.90 0.00 1283.90 957.90 326.00
4 77.30 77.30 0.00 1283.90 958.00 325.90
5 77.30 77.30 0.00 1284.00 957.90 326.10
6 93.20 93.20 0.00 1284.00 959.00 325.00
7 100.50 100.50 0.00 1284.00 959.80 324.20
8 120.70 120.70 0.00 1284.00 961.60 322.40
9 123.30 123.30 0.00 1284.00 962.00 322.00
10 122.00 122.00 0.00 1284.00 961.90 322.10
11 114.70 114.70 0.00 1284.00 961.70 322.30
12 116.60 116.60 0.00 1284.00 961.70 322.30
13 116.40 116.40 0.00 1284.00 961.90 322.10
14 118.70 118.70 0.00 1284.00 962.00 322.00
15 118.20 118.20 0.00 1283.90 961.90 322.00
16 119.70 119.70 0.00 1283.90 962.00 321.90
17 132.20 132.20 0.00 1283.90 963.10 320.80
18 145.50 145.50 0.00 1283.90 964.10 319.80
19 151.50 151.50 0.00 1283.90 964.90 319.00
20 156.20 156.20 0.00 1283.90 965.50 318.40
21 144.80 144.80 0.00 1283.90 965.00 318.90
22
23
24
AVG 113.20 113.20 0.00 1283.95 961.35 322.60
MAX 156.20 156.20 0.00 1284.00 965.50 326.10
MIN 74.10 74.10 0.00 1283.90 957.90 318.40