Columbia River At St. Helens

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Hydrograph

Stage Color Key
14.5 ft - Near Flood 15.5 ft - Minor Flood 18 ft - Moderate Flood 21 ft - Major Flood

Latest Observation: Thursday June 18th, 2026 08:36 PM CDT
River Status: Normal

  Height Flow
Currently 4.1 ft N/A
Record 27.1 ft N/A

Forecast
  Date (CDT) Stage (ft) Flow (kcfs)
  Wednesday 12/31/1969 06:00 PM 0.00 N/A
  Thursday 06/18/2026 06:00 PM 3.23 N/A
  Thursday 06/18/2026 07:00 PM 3.14 N/A
  Thursday 06/18/2026 08:00 PM 3.51 N/A
  Thursday 06/18/2026 09:00 PM 4.37 N/A
  Thursday 06/18/2026 10:00 PM 5.13 N/A
  Thursday 06/18/2026 11:00 PM 5.35 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Thursday 06/18/2026 06:36 PM 3.05 N/A
Thursday 06/18/2026 06:42 PM 3.04 N/A
Thursday 06/18/2026 06:48 PM 3.04 N/A
Thursday 06/18/2026 06:54 PM 3.05 N/A
Thursday 06/18/2026 07:00 PM 3.06 N/A
Thursday 06/18/2026 07:06 PM 3.08 N/A
Thursday 06/18/2026 07:12 PM 3.10 N/A
Thursday 06/18/2026 07:18 PM 3.14 N/A
Thursday 06/18/2026 07:24 PM 3.18 N/A
Thursday 06/18/2026 07:30 PM 3.23 N/A
Thursday 06/18/2026 07:36 PM 3.27 N/A
Thursday 06/18/2026 07:42 PM 3.33 N/A
Thursday 06/18/2026 07:48 PM 3.40 N/A
Thursday 06/18/2026 07:54 PM 3.46 N/A
Thursday 06/18/2026 08:00 PM 3.54 N/A
Thursday 06/18/2026 08:06 PM 3.62 N/A
Thursday 06/18/2026 08:12 PM 3.71 N/A
Thursday 06/18/2026 08:18 PM 3.81 N/A
Thursday 06/18/2026 08:24 PM 3.90 N/A
Thursday 06/18/2026 08:30 PM 4.00 N/A

Data Courtesy of the Advanced Hydrologic Prediction Service
Script Courtesy of Dennis at East Masonville Weather with mods by Saratoga-weather.org