US Army Corps of Engineers

Grand Coulee Dam

Sunday October 19, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 69.10 69.10 0.00 1285.60 957.70 327.90
2 55.50 55.50 0.00 1285.60 956.90 328.70
3 43.50 43.50 0.00 1285.60 955.80 329.80
4 36.10 36.10 0.00 1285.70 955.30 330.40
5 35.90 35.90 0.00 1285.70 955.70 330.00
6 44.00 44.00 0.00 1285.60 956.20 329.40
7 51.90 51.90 0.00 1285.50 956.70 328.80
8 60.70 60.70 0.00 1285.50 957.20 328.30
9 47.80 47.80 0.00 1285.60 956.30 329.30
10 46.10 46.10 0.00 1285.70 955.90 329.80
11 46.40 46.40 0.00 1285.70 956.20 329.50
12 42.40 42.40 0.00 1285.70 955.90 329.80
13 40.40 40.40 0.00 1285.70 955.50 330.20
14 37.30 37.30 0.00 1285.60 955.60 330.00
15 39.30 39.30 0.00 1285.60 955.70 329.90
16 39.00 39.00 0.00 1285.70 955.60 330.10
17 41.20 41.20 0.00 1285.80 955.70 330.10
18 51.30 51.30 0.00 1285.70 956.60 329.10
19 58.00 58.00 0.00 1285.70 957.10 328.60
20 56.20 56.20 0.00 1285.70 956.80 328.90
21 52.20 52.20 0.00 1285.70 956.50 329.20
22 43.50 43.50 0.00 1285.80 956.00 329.80
23 41.20 41.20 0.00 1285.90 955.60 330.30
24 37.80 37.80 0.00 1286.00 955.30 330.70
AVG 46.53 46.53 0.00 1285.68 956.16 329.53
MAX 69.10 69.10 0.00 1286.00 957.70 330.70
MIN 35.90 35.90 0.00 1285.50 955.30 327.90