COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-01-11 09:13 PST
Date/Time (PST)Pool Height    Date/Time (PST)Pool Height
2026-01-12 00:001284.03    2026-01-12 10:001283.83
2026-01-11 00:001283.97    2026-01-12 16:001283.73
2026-01-10 00:001283.89    2026-01-12 22:001283.63
2026-01-09 00:001283.98    2026-01-13 04:001283.52
2026-01-08 00:001284.2    2026-01-13 10:001283.41
2026-01-07 00:001284.6    2026-01-13 16:001283.3
2026-01-06 00:001285.04    2026-01-13 22:001283.18
2026-01-05 00:001284.86    2026-01-14 04:001283.07
2026-01-04 00:001284.39    2026-01-14 10:001282.95
2026-01-03 00:001284.56    2026-01-14 16:001282.84
2026-01-02 00:001285.09    2026-01-14 22:001282.72
      2026-01-15 04:001282.68
      2026-01-15 10:001282.64
      2026-01-15 16:001282.6
      2026-01-15 22:001282.56
      2026-01-16 04:001282.52
      2026-01-16 10:001282.48
      2026-01-16 16:001282.44
      2026-01-16 22:001282.4
      2026-01-17 04:001282.36
      2026-01-17 10:001282.32
      2026-01-17 16:001282.28
      2026-01-17 22:001282.24
      2026-01-18 04:001282.2
      2026-01-18 10:001282.16
      2026-01-18 16:001282.12
      2026-01-18 22:001282.08
      2026-01-19 04:001282.04
      2026-01-19 10:001282
      2026-01-19 16:001281.96
      2026-01-19 22:001281.92
      2026-01-20 04:001281.88
      2026-01-20 10:001281.84
      2026-01-20 16:001281.8
      2026-01-20 22:001281.76
      2026-01-21 04:001281.72