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: Wednesday September 17th, 2025 05:36 PM CDT
River Status: Normal

  Height Flow
Currently 3.33 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 09/17/2025 12:00 PM 0.35 N/A
  Wednesday 09/17/2025 01:00 PM 0.50 N/A
  Wednesday 09/17/2025 02:00 PM 1.06 N/A
  Wednesday 09/17/2025 03:00 PM 1.85 N/A
  Wednesday 09/17/2025 04:00 PM 2.55 N/A
  Wednesday 09/17/2025 05:00 PM 2.81 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Wednesday 09/17/2025 02:12 PM 1.62 N/A
Wednesday 09/17/2025 02:18 PM 1.71 N/A
Wednesday 09/17/2025 02:36 PM 1.99 N/A
Wednesday 09/17/2025 02:42 PM 2.08 N/A
Wednesday 09/17/2025 02:48 PM 2.16 N/A
Wednesday 09/17/2025 03:06 PM 2.38 N/A
Wednesday 09/17/2025 03:12 PM 2.45 N/A
Wednesday 09/17/2025 03:18 PM 2.51 N/A
Wednesday 09/17/2025 03:36 PM 2.68 N/A
Wednesday 09/17/2025 03:42 PM 2.73 N/A
Wednesday 09/17/2025 03:48 PM 2.78 N/A
Wednesday 09/17/2025 04:06 PM 2.91 N/A
Wednesday 09/17/2025 04:12 PM 2.95 N/A
Wednesday 09/17/2025 04:18 PM 2.99 N/A
Wednesday 09/17/2025 04:36 PM 3.10 N/A
Wednesday 09/17/2025 04:42 PM 3.14 N/A
Wednesday 09/17/2025 04:48 PM 3.18 N/A
Wednesday 09/17/2025 05:06 PM 3.27 N/A
Wednesday 09/17/2025 05:12 PM 3.30 N/A
Wednesday 09/17/2025 05:18 PM 3.29 N/A

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