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 September 24th, 2026 06:30 AM CDT
River Status: Normal

  Height Flow
Currently 3.63 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
  Wednesday 09/23/2026 07:00 PM 2.86 N/A
  Wednesday 09/23/2026 08:00 PM 2.43 N/A
  Wednesday 09/23/2026 09:00 PM 2.01 N/A
  Wednesday 09/23/2026 10:00 PM 1.56 N/A
  Wednesday 09/23/2026 11:00 PM 1.14 N/A
  Thursday 09/24/2026 12:00 AM 0.89 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Thursday 09/24/2026 05:00 AM 3.60 N/A
Thursday 09/24/2026 05:06 AM 3.56 N/A
Thursday 09/24/2026 05:12 AM 3.57 N/A
Thursday 09/24/2026 05:18 AM 3.63 N/A
Thursday 09/24/2026 05:24 AM 3.68 N/A
Thursday 09/24/2026 05:30 AM 3.71 N/A
Thursday 09/24/2026 05:36 AM 3.73 N/A
Thursday 09/24/2026 05:42 AM 3.73 N/A
Thursday 09/24/2026 05:48 AM 3.73 N/A
Thursday 09/24/2026 05:54 AM 3.74 N/A
Thursday 09/24/2026 06:00 AM 3.74 N/A
Thursday 09/24/2026 06:06 AM 3.74 N/A
Thursday 09/24/2026 06:12 AM 3.73 N/A
Thursday 09/24/2026 06:18 AM 3.70 N/A
Thursday 09/24/2026 06:24 AM 3.67 N/A
Thursday 09/24/2026 06:30 AM 3.63 N/A
Thursday 09/24/2026 06:36 AM 3.57 N/A
Thursday 09/24/2026 06:42 AM 3.52 N/A
Thursday 09/24/2026 06:48 AM 3.46 N/A
Thursday 09/24/2026 06:54 AM 3.40 N/A

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