COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-10-25 10:17 PDT
Date/Time (PDT)Pool Height    Date/Time (PDT)Pool Height
2026-10-26 00:001288.03    2026-10-26 05:001288
2026-10-25 00:001287.76    2026-10-26 11:001288
2026-10-24 00:001287.52    2026-10-26 17:001288
2026-10-23 00:001287.37    2026-10-26 23:001288
2026-10-22 00:001287.27    2026-10-27 05:001288
2026-10-21 00:001287.2    2026-10-27 11:001288
2026-10-20 00:001287.04    2026-10-27 17:001288
2026-10-19 00:001286.9    2026-10-27 23:001288
2026-10-18 00:001286.82    2026-10-28 05:001288
2026-10-17 00:001286.48    2026-10-28 11:001288
2026-10-16 00:001285.99    2026-10-28 17:001288
      2026-10-28 23:001288
      2026-10-29 05:001288
      2026-10-29 11:001288
      2026-10-29 17:001288
      2026-10-29 23:001288
      2026-10-30 05:001288
      2026-10-30 11:001288
      2026-10-30 17:001288
      2026-10-30 23:001288
      2026-10-31 05:001287.95
      2026-10-31 11:001287.85
      2026-10-31 17:001287.74
      2026-11-01 00:001287.62
      2026-11-01 05:001287.49
      2026-11-01 11:001287.34
      2026-11-01 17:001287.16
      2026-11-01 23:001286.97
      2026-11-02 05:001286.76
      2026-11-02 11:001286.53
      2026-11-02 17:001286.31
      2026-11-02 23:001286.08
      2026-11-03 05:001285.86
      2026-11-03 11:001285.63
      2026-11-03 17:001285.4
      2026-11-03 23:001285.17
      2026-11-04 05:001284.94