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: Monday August 3rd, 2026 07:24 AM CDT
River Status: Normal

  Height Flow
Currently 2.41 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
  Sunday 08/02/2026 06:00 PM 1.41 N/A
  Sunday 08/02/2026 07:00 PM 1.94 N/A
  Sunday 08/02/2026 08:00 PM 2.98 N/A
  Sunday 08/02/2026 09:00 PM 3.91 N/A
  Sunday 08/02/2026 10:00 PM 4.32 N/A
  Sunday 08/02/2026 11:00 PM 4.23 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 08/03/2026 06:00 AM 1.70 N/A
Monday 08/03/2026 06:06 AM 1.70 N/A
Monday 08/03/2026 06:12 AM 1.72 N/A
Monday 08/03/2026 06:18 AM 1.75 N/A
Monday 08/03/2026 06:24 AM 1.77 N/A
Monday 08/03/2026 06:30 AM 1.81 N/A
Monday 08/03/2026 06:36 AM 1.85 N/A
Monday 08/03/2026 06:42 AM 1.90 N/A
Monday 08/03/2026 06:48 AM 1.96 N/A
Monday 08/03/2026 06:54 AM 2.02 N/A
Monday 08/03/2026 07:00 AM 2.09 N/A
Monday 08/03/2026 07:06 AM 2.17 N/A
Monday 08/03/2026 07:12 AM 2.24 N/A
Monday 08/03/2026 07:18 AM 2.32 N/A
Monday 08/03/2026 07:24 AM 2.41 N/A
Monday 08/03/2026 07:30 AM 2.49 N/A
Monday 08/03/2026 07:36 AM 2.57 N/A
Monday 08/03/2026 07:42 AM 2.65 N/A
Monday 08/03/2026 07:48 AM 2.79 N/A
Monday 08/03/2026 07:54 AM 2.87 N/A

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