COLUMBIA--BLO ROCK ISLAND DAM (RISW1)

Observed    Forecast/Trend Issued: 2026-08-09 09:48 PDT
Date/Time (PDT)Pool Height    Date/Time (PDT)Pool Height
2026-08-09 00:00612.07    2026-08-09 17:00611.85
2026-08-08 00:00612.13    2026-08-09 23:00611.85
2026-08-07 00:00611.99    2026-08-10 05:00611.85
2026-08-06 00:00611.98    2026-08-10 11:00611.85
2026-08-05 00:00611.98    2026-08-10 17:00611.85
2026-08-04 00:00612.02    2026-08-10 23:00611.85
2026-08-03 00:00612.18    2026-08-11 05:00611.85
2026-08-02 00:00611.92    2026-08-11 11:00611.85
2026-08-01 00:00611.99    2026-08-11 17:00611.85
2026-07-31 00:00612.09    2026-08-11 23:00611.85
2026-07-30 00:00612.16    2026-08-12 05:00611.85
      2026-08-12 11:00611.85
      2026-08-12 17:00611.85
      2026-08-12 23:00611.85
      2026-08-13 05:00611.85
      2026-08-13 11:00611.85
      2026-08-13 17:00611.85
      2026-08-13 23:00611.85
      2026-08-14 05:00611.85
      2026-08-14 11:00611.85
      2026-08-14 17:00611.85
      2026-08-14 23:00611.85
      2026-08-15 05:00611.85
      2026-08-15 11:00611.85
      2026-08-15 17:00611.85
      2026-08-15 23:00611.85
      2026-08-16 05:00611.85
      2026-08-16 11:00611.85
      2026-08-16 17:00611.85
      2026-08-16 23:00611.85
      2026-08-17 05:00611.85
      2026-08-17 11:00611.85
      2026-08-17 17:00611.85
      2026-08-17 23:00611.85
      2026-08-18 05:00611.85
      2026-08-18 11:00611.85
      2026-08-18 17:00611.85
      2026-08-18 23:00611.85
      2026-08-19 05:00611.85