US Army Corps of Engineers

Grand Coulee Dam

Friday December 5, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 129.00 129.00 0.00 1284.30 962.70 321.60
2 124.10 124.10 0.00 1284.30 963.00 321.30
3 125.60 125.60 0.00 1284.30 963.10 321.20
4 121.20 121.20 0.00 1284.20 962.70 321.50
5 124.80 124.80 0.00 1284.20 962.80 321.40
6 124.40 124.40 0.00 1284.20 962.90 321.30
7 125.40 125.40 0.00 1284.10 963.10 321.00
8 126.00 126.00 0.00 1284.00 963.10 320.90
9 118.70 118.70 0.00 1284.00 962.50 321.50
10 125.00 125.00 0.00 1284.00 962.70 321.30
11 120.70 120.70 0.00 1283.90 962.80 321.10
12 117.60 117.60 0.00 1283.90 962.30 321.60
13 121.70 121.70 0.00 1283.90 962.40 321.50
14 116.80 116.80 0.00 1283.90 962.30 321.60
15 99.80 99.80 0.00 1283.90 961.00 322.90
16 111.30 111.30 0.00 1283.80 961.30 322.50
17 122.70 122.70 0.00 1283.70 962.40 321.30
18 117.70 117.70 0.00 1283.70 962.40 321.30
19 116.00 116.00 0.00 1283.70 962.20 321.50
20 113.80 113.80 0.00 1283.70 962.00 321.70
21 104.80 104.80 0.00 1283.70 961.20 322.50
22 95.90 95.90 0.00 1283.70 960.40 323.30
23 110.80 110.80 0.00 1283.70 961.20 322.50
24 98.10 98.10 0.00 1283.70 960.70 323.00
AVG 117.16 117.16 0.00 1283.94 962.22 321.72
MAX 129.00 129.00 0.00 1284.30 963.10 323.30
MIN 95.90 95.90 0.00 1283.70 960.40 320.90