COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-08-10 10:29 PDT
Date/Time (PDT)Pool Height    Date/Time (PDT)Pool Height
2026-08-10 00:001282.83    2026-08-11 05:001282.69
2026-08-09 00:001283    2026-08-11 11:001282.64
2026-08-08 00:001283.34    2026-08-11 17:001282.59
2026-08-07 00:001283.62    2026-08-11 23:001282.54
2026-08-06 00:001283.81    2026-08-12 05:001282.5
2026-08-05 00:001284.03    2026-08-12 11:001282.46
2026-08-04 00:001284.21    2026-08-12 17:001282.42
2026-08-03 00:001284.36    2026-08-12 23:001282.38
2026-08-02 00:001284.44    2026-08-13 05:001282.34
2026-08-01 00:001285.01    2026-08-13 11:001282.3
2026-07-31 00:001285.45    2026-08-13 17:001282.26
      2026-08-13 23:001282.21
      2026-08-14 05:001282.16
      2026-08-14 11:001282.1
      2026-08-14 17:001282.04
      2026-08-14 23:001281.98
      2026-08-15 05:001281.92
      2026-08-15 11:001281.85
      2026-08-15 17:001281.79
      2026-08-15 23:001281.72
      2026-08-16 05:001281.66
      2026-08-16 11:001281.6
      2026-08-16 17:001281.54
      2026-08-16 23:001281.48
      2026-08-17 05:001281.43
      2026-08-17 11:001281.37
      2026-08-17 17:001281.32
      2026-08-17 23:001281.26
      2026-08-18 05:001281.21
      2026-08-18 11:001281.15
      2026-08-18 17:001281.1
      2026-08-18 23:001281.04
      2026-08-19 05:001280.99
      2026-08-19 11:001280.93
      2026-08-19 17:001280.88
      2026-08-19 23:001280.82
      2026-08-20 05:001280.77