COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-07-17 09:54 PDT
Date/Time (PDT)Inflow    Date/Time (PDT)Inflow
2026-07-17 00:0089200    2026-07-18 05:0098368.29
2026-07-16 00:00104200    2026-07-18 11:0097752.13
2026-07-15 00:00101900    2026-07-18 17:0097401.31
2026-07-14 00:00104400    2026-07-18 23:0097258.45
2026-07-13 00:00105900    2026-07-19 05:0097340.65
2026-07-12 00:00110900    2026-07-19 11:0097616.55
2026-07-11 00:00123500    2026-07-19 17:0097928.97
2026-07-10 00:00123200    2026-07-19 23:0098126.97
2026-07-09 00:00118700    2026-07-20 05:0098172.15
2026-07-08 00:00132900    2026-07-20 11:0098091.41
      2026-07-20 17:0097951.41
      2026-07-20 23:0097792.43
      2026-07-21 05:0097625.77
      2026-07-21 11:0097449.07
      2026-07-21 17:0097284.42
      2026-07-21 23:0097139.56
      2026-07-22 05:0097009.51
      2026-07-22 11:0096882.13
      2026-07-22 17:0096764.03
      2026-07-22 23:0096670.31
      2026-07-23 05:0096601.78
      2026-07-23 11:0096523.25
      2026-07-23 17:0096438.97
      2026-07-23 23:0096366.79
      2026-07-24 05:0096304.15
      2026-07-24 11:0096218.79
      2026-07-24 17:0096121.43
      2026-07-24 23:0096036.93
      2026-07-25 05:0095961.93
      2026-07-25 11:0095863.89
      2026-07-25 17:0095748.83
      2026-07-25 23:0095636.25
      2026-07-26 05:0095528.56
      2026-07-26 11:0095403.17
      2026-07-26 17:0095268.63
      2026-07-26 23:0095140.91
      2026-07-27 05:0095019.15