COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-11-06 07:27 PST
Date/Time (PST)Pool Height    Date/Time (PST)Pool Height
2026-11-07 00:001287.92    2026-11-07 10:001287.37
2026-11-06 00:001288.29    2026-11-07 16:001287.23
2026-11-05 00:001288.83    2026-11-07 22:001287.1
2026-11-04 00:001289.12    2026-11-08 04:001286.97
2026-11-03 00:001288.93    2026-11-08 10:001286.84
2026-11-02 00:001288.55    2026-11-08 16:001286.71
2026-11-01 00:001288.4    2026-11-08 22:001286.58
2026-10-30 23:001288.55    2026-11-09 04:001286.44
2026-10-29 23:001288.65    2026-11-09 10:001286.31
2026-10-28 23:001288.69    2026-11-09 16:001286.17
2026-10-27 23:001288.64    2026-11-09 22:001286.03
      2026-11-10 04:001285.9
      2026-11-10 10:001285.76
      2026-11-10 16:001285.63
      2026-11-10 22:001285.49
      2026-11-11 04:001285.37
      2026-11-11 10:001285.24
      2026-11-11 16:001285.11
      2026-11-11 22:001284.99
      2026-11-12 04:001284.86
      2026-11-12 10:001284.73
      2026-11-12 16:001284.61
      2026-11-12 22:001284.48
      2026-11-13 04:001284.36
      2026-11-13 10:001284.23
      2026-11-13 16:001284.1
      2026-11-13 22:001283.98
      2026-11-14 04:001283.85
      2026-11-14 10:001283.73
      2026-11-14 16:001283.6
      2026-11-14 22:001283.47
      2026-11-15 04:001283.35
      2026-11-15 10:001283.23
      2026-11-15 16:001283.1
      2026-11-15 22:001282.98
      2026-11-16 04:001282.84