COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-08-22 09:26 PDT
Date/Time (PDT)Inflow    Date/Time (PDT)Inflow
2026-08-22 00:0081400    2026-08-22 11:0081291.09
2026-08-21 00:0086000    2026-08-22 17:0081212.3
2026-08-20 00:0083500    2026-08-22 23:0081114.79
2026-08-19 00:0080900    2026-08-23 05:0080974.41
2026-08-18 00:0078600    2026-08-23 11:0080741.27
2026-08-17 00:0080000    2026-08-23 17:0080441.04
2026-08-16 00:0081200    2026-08-23 23:0080202.17
2026-08-15 00:0083200    2026-08-24 05:0080116.88
2026-08-14 00:0085400    2026-08-24 11:0080171.27
2026-08-13 00:0087700    2026-08-24 17:0080297.86
2026-08-12 00:0082100    2026-08-24 23:0080428.77
      2026-08-25 05:0080522.23
      2026-08-25 11:0080576.88
      2026-08-25 17:0080603.58
      2026-08-25 23:0080613.03
      2026-08-26 05:0080609.55
      2026-08-26 11:0080601.83
      2026-08-26 17:0080590.67
      2026-08-26 23:0080572.34
      2026-08-27 05:0080538.05
      2026-08-27 11:0080489.85
      2026-08-27 17:0080429.89
      2026-08-27 23:0080362.73
      2026-08-28 05:0080290.22
      2026-08-28 11:0080223.35
      2026-08-28 17:0080168.01
      2026-08-28 23:0080125.13
      2026-08-29 05:0079587.35
      2026-08-29 11:0077511.75
      2026-08-29 17:0074323.55
      2026-08-29 23:0071991.53
      2026-08-30 05:0071160.21
      2026-08-30 11:0071018.05
      2026-08-30 17:0071018.62
      2026-08-30 23:0071083.78
      2026-08-31 05:0071226.55
      2026-08-31 11:0071438.07
      2026-08-31 17:0071682.99
      2026-08-31 23:0071927.27
      2026-09-01 05:0072091.85