COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-03-27 08:40 PDT
Date/Time (PDT)Inflow    Date/Time (PDT)Inflow
2026-03-27 00:00145800    2026-03-27 17:00138784.29
2026-03-26 00:00119300    2026-03-27 23:00139181.35
2026-03-25 00:00124300    2026-03-28 05:00139368.07
2026-03-24 00:00131800    2026-03-28 11:00139335.66
2026-03-23 00:00126900    2026-03-28 17:00139206.86
2026-03-22 00:00113900    2026-03-28 23:00139062.56
2026-03-21 00:00113100    2026-03-29 05:00138917.05
2026-03-20 00:0097700    2026-03-29 11:00138394.21
2026-03-19 00:00103400    2026-03-29 17:00136240.78
2026-03-18 00:00103400    2026-03-29 23:00131751.69
2026-03-17 00:00102300    2026-03-30 05:00126210.31
      2026-03-30 11:00121796.62
      2026-03-30 17:00119550.06
      2026-03-30 23:00118880.35
      2026-03-31 05:00118848.43
      2026-03-31 11:00118876.14
      2026-03-31 17:00118889.59
      2026-03-31 23:00118890.73
      2026-04-01 05:00118791.58
      2026-04-01 11:00118436.26
      2026-04-01 17:00117840.46
      2026-04-01 23:00117330.64
      2026-04-02 05:00117112.4
      2026-04-02 11:00117258.08
      2026-04-02 17:00117666.63
      2026-04-02 23:00118116.99
      2026-04-03 05:00118473.86
      2026-04-03 11:00118675.06
      2026-04-03 17:00118754.28
      2026-04-03 23:00118756.3
      2026-04-04 05:00118689.8
      2026-04-04 11:00118591.24
      2026-04-04 17:00118492.19
      2026-04-04 23:00118400.41
      2026-04-05 05:00118301.02
      2026-04-05 11:00118196.59
      2026-04-05 17:00118105.32
      2026-04-05 23:00118012.64
      2026-04-06 05:00117891