COLUMBIA--GRAND COULEE DAM (GCDW1)

Observed    Forecast/Trend Issued: 2026-05-04 14:58 PDT
Date/Time (PDT)Inflow    Date/Time (PDT)Inflow
2026-05-05 00:00138000    2026-05-05 11:00136536.18
2026-05-04 00:00133900    2026-05-05 17:00135558.88
2026-05-03 00:00122600    2026-05-05 23:00135042.92
2026-05-02 00:00124600    2026-05-06 05:00134786.21
2026-05-01 00:00120800    2026-05-06 11:00134646.21
2026-04-30 00:00131600    2026-05-06 17:00134582.14
2026-04-29 00:00130100    2026-05-06 23:00134504.71
2026-04-28 00:00131100    2026-05-07 05:00134376.4
2026-04-27 00:00137600    2026-05-07 11:00134285.52
2026-04-26 00:00134200    2026-05-07 17:00134636.4
2026-04-25 00:00140700    2026-05-07 23:00136037.87
      2026-05-08 05:00138664.15
      2026-05-08 11:00141837.27
      2026-05-08 17:00144581.51
      2026-05-08 23:00146427.43
      2026-05-09 05:00147472.9
      2026-05-09 11:00148035.02
      2026-05-09 17:00148401.84
      2026-05-09 23:00148720.78
      2026-05-10 05:00149027.53
      2026-05-10 11:00149339.31
      2026-05-10 17:00149668.08
      2026-05-10 23:00150022.17
      2026-05-11 05:00150448.24
      2026-05-11 11:00151076.84
      2026-05-11 17:00152034.33
      2026-05-11 23:00153271.56
      2026-05-12 05:00154583.42
      2026-05-12 11:00155793.4
      2026-05-12 17:00156826.52
      2026-05-12 23:00157650.21
      2026-05-13 05:00158267.32
      2026-05-13 11:00158744.89
      2026-05-13 17:00159174.06
      2026-05-13 23:00159593.8
      2026-05-14 05:00159996