COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-07-31 08:33 PDT
Date/Time (PDT)Inflow    Date/Time (PDT)Inflow
2026-08-01 00:0099000    2026-08-01 05:0089143.14
2026-07-31 00:0089300    2026-08-01 11:0088925.87
2026-07-30 00:0092800    2026-08-01 17:0088867.42
2026-07-29 00:0084600    2026-08-01 23:0088797.89
2026-07-28 00:0092400    2026-08-02 05:0088699.05
2026-07-27 00:0095300    2026-08-02 11:0088718.84
2026-07-26 00:0084000    2026-08-02 17:0088848.4
2026-07-25 00:0092000    2026-08-02 23:0088953.7
2026-07-24 00:0095400    2026-08-03 05:0088985.76
2026-07-23 00:0098000    2026-08-03 11:0088988.34
2026-07-22 00:0092900    2026-08-03 17:0088992.93
      2026-08-03 23:0089001.59
      2026-08-04 05:0089009.57
      2026-08-04 11:0089015.07
      2026-08-04 17:0089022.13
      2026-08-04 23:0089028.5
      2026-08-05 05:0089016.46
      2026-08-05 11:0088957.57
      2026-08-05 17:0088837.91
      2026-08-05 23:0088675.45
      2026-08-06 05:0088510.93
      2026-08-06 11:0088378.8
      2026-08-06 17:0088292.53
      2026-08-06 23:0088244.09
      2026-08-07 05:0088218.11
      2026-08-07 11:0088202
      2026-08-07 17:0088192.38
      2026-08-07 23:0088185.47
      2026-08-08 05:0088177.79
      2026-08-08 11:0088168.72
      2026-08-08 17:0088162.09
      2026-08-08 23:0088157.94
      2026-08-09 05:0088152.47
      2026-08-09 11:0088144.2
      2026-08-09 17:0088138.58
      2026-08-09 23:0088136.76
      2026-08-10 05:0088105.57