COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-09-12 08:49 PDT
Date/Time (PDT)Inflow    Date/Time (PDT)Inflow
2026-09-12 00:0069700    2026-09-12 17:0071433.5
2026-09-11 00:0068000    2026-09-12 23:0070410.19
2026-09-10 00:0065000    2026-09-13 05:0069389.89
2026-09-09 00:0063300    2026-09-13 11:0068826.03
2026-09-08 00:0065700    2026-09-13 17:0068517.89
2026-09-07 00:0061900    2026-09-13 23:0068290.23
2026-09-06 00:0073600    2026-09-14 05:0068124.78
2026-09-05 00:0074200    2026-09-14 11:0068054.35
2026-09-04 00:0073400    2026-09-14 17:0068081.45
2026-09-03 00:0073600    2026-09-14 23:0068152.58
2026-09-02 00:0072400    2026-09-15 05:0068182.54
      2026-09-15 11:0068123.89
      2026-09-15 17:0067968.57
      2026-09-15 23:0067741.59
      2026-09-16 05:0067479.16
      2026-09-16 11:0067228.8
      2026-09-16 17:0067019.08
      2026-09-16 23:0066861.12
      2026-09-17 05:0066755.9
      2026-09-17 11:0066700.3
      2026-09-17 17:0066687.49
      2026-09-17 23:0066708.28
      2026-09-18 05:0066751.51
      2026-09-18 11:0066806.07
      2026-09-18 17:0066859.1
      2026-09-18 23:0066898.44
      2026-09-19 05:0066817.76
      2026-09-19 11:0066393.18
      2026-09-19 17:0065683.55
      2026-09-19 23:0065108.78
      2026-09-20 05:0064853.75
      2026-09-20 11:0064762.93
      2026-09-20 17:0064707.08
      2026-09-20 23:0064652.7
      2026-09-21 05:0064597.57
      2026-09-21 11:0064570.5
      2026-09-21 17:0064700.21
      2026-09-21 23:0065232.27
      2026-09-22 05:0066351.21