COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-09-19 09:48 PDT
Date/Time (PDT)Inflow    Date/Time (PDT)Inflow
2026-09-19 00:0070500    2026-09-19 17:0070490.5
2026-09-18 00:0063800    2026-09-19 23:0071136.19
2026-09-17 00:0062800    2026-09-20 05:0072011.9
2026-09-16 00:0069100    2026-09-20 11:0072952.22
2026-09-15 00:0073500    2026-09-20 17:0073811.79
2026-09-14 00:0061300    2026-09-20 23:0074460.98
2026-09-13 00:0074500    2026-09-21 05:0074871.38
2026-09-12 00:0069700    2026-09-21 11:0075128.33
2026-09-11 00:0068000    2026-09-21 17:0075328.87
2026-09-10 00:0065000    2026-09-21 23:0075416.39
2026-09-09 00:0063300    2026-09-22 05:0075401.01
      2026-09-22 11:0075355.84
      2026-09-22 17:0075304.06
      2026-09-22 23:0075248.45
      2026-09-23 05:0075191.26
      2026-09-23 11:0075133.84
      2026-09-23 17:0075079.28
      2026-09-23 23:0075022.72
      2026-09-24 05:0074966.12
      2026-09-24 11:0074910.89
      2026-09-24 17:0074858.03
      2026-09-24 23:0074805.5
      2026-09-25 05:0074753.24
      2026-09-25 11:0074702.04
      2026-09-25 17:0074653.31
      2026-09-25 23:0074603.17
      2026-09-26 05:0074244.4
      2026-09-26 11:0072898.6
      2026-09-26 17:0070772.78
      2026-09-26 23:0069132.29
      2026-09-27 05:0068482.81
      2026-09-27 11:0068322.68
      2026-09-27 17:0068259.22
      2026-09-27 23:0068207.11
      2026-09-28 05:0068167.59
      2026-09-28 11:0068186.56
      2026-09-28 17:0068344.85
      2026-09-28 23:0068691.53
      2026-09-29 05:0069159.41