US Army Corps of Engineers

Grand Coulee Dam

Sunday May 18, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 72.60 72.60 0.00 1267.70 957.20 310.50
2 70.70 70.70 0.00 1267.60 957.10 310.50
3 71.50 71.50 0.00 1267.60 957.10 310.50
4 69.60 69.60 0.00 1267.70 957.10 310.60
5 67.10 67.10 0.00 1267.80 956.90 310.90
6 61.80 61.80 0.00 1267.90 956.50 311.40
7 58.80 58.80 0.00 1267.90 956.30 311.60
8 51.30 51.30 0.00 1268.00 956.00 312.00
9 52.00 52.00 0.00 1268.00 956.00 312.00
10 50.80 50.80 0.00 1268.00 955.90 312.10
11 52.00 52.00 0.00 1268.00 956.00 312.00
12 58.30 58.30 0.00 1268.10 956.20 311.90
13 67.40 67.40 0.00 1268.20 956.80 311.40
14 63.00 63.00 0.00 1268.40 956.60 311.80
15 59.90 59.90 0.00 1268.40 956.20 312.20
16 55.50 55.50 0.00 1268.40 955.90 312.50
17 55.90 55.90 0.00 1268.50 955.90 312.60
18 53.20 53.20 0.00 1268.60 955.70 312.90
19 70.80 70.80 0.00 1268.50 956.50 312.00
20 84.90 84.90 0.00 1268.70 958.00 310.70
21 81.30 81.30 0.00 1268.70 957.90 310.80
22 84.90 84.90 0.00 1268.70 958.00 310.70
23 113.00 113.00 0.00 1268.60 960.20 308.40
24 105.50 105.50 0.00 1268.70 960.50 308.20
AVG 67.99 67.99 0.00 1268.20 956.94 311.26
MAX 113.00 113.00 0.00 1268.70 960.50 312.90
MIN 50.80 50.80 0.00 1267.60 955.70 308.20