COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-07-02 11:08 PDT
Date/Time (PDT)Pool Height    Date/Time (PDT)Pool Height
2026-07-02 00:001285.6    2026-07-02 17:001285.92
2026-07-01 00:001285.76    2026-07-02 23:001286.02
2026-06-30 00:001285.92    2026-07-03 05:001286.12
2026-06-29 00:001285.92    2026-07-03 11:001286.22
2026-06-28 00:001285.37    2026-07-03 17:001286.32
2026-06-27 00:001285    2026-07-03 23:001286.41
2026-06-26 00:001285.19    2026-07-04 05:001286.51
2026-06-25 00:001285.39    2026-07-04 11:001286.61
2026-06-24 00:001285.23    2026-07-04 17:001286.71
2026-06-23 00:001285.1    2026-07-04 23:001286.81
2026-06-22 00:001284.66    2026-07-05 05:001286.9
      2026-07-05 11:001287
      2026-07-05 17:001287.13
      2026-07-05 23:001287.25
      2026-07-06 05:001287.38
      2026-07-06 11:001287.5
      2026-07-06 17:001287.63
      2026-07-06 23:001287.75
      2026-07-07 05:001287.88
      2026-07-07 11:001288
      2026-07-07 17:001288.13
      2026-07-07 23:001288.25
      2026-07-08 05:001288.37
      2026-07-08 11:001288.5
      2026-07-08 17:001288.62
      2026-07-08 23:001288.75
      2026-07-09 05:001288.87
      2026-07-09 11:001289
      2026-07-09 17:001289.02
      2026-07-09 23:001289.03
      2026-07-10 05:001289.05
      2026-07-10 11:001289.07
      2026-07-10 17:001289.09
      2026-07-10 23:001289.1
      2026-07-11 05:001289.12
      2026-07-11 11:001289.14
      2026-07-11 17:001289.16
      2026-07-11 23:001289.17
      2026-07-12 05:001289.19