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: Friday September 11th, 2026 09:36 PM CDT
River Status: Normal

  Height Flow
Currently 3.88 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
  Friday 09/11/2026 07:00 PM 4.27 N/A
  Friday 09/11/2026 08:00 PM 4.50 N/A
  Friday 09/11/2026 09:00 PM 4.27 N/A
  Friday 09/11/2026 10:00 PM 3.78 N/A
  Friday 09/11/2026 11:00 PM 3.31 N/A
  Saturday 09/12/2026 12:00 AM 2.82 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Friday 09/11/2026 07:36 PM 4.30 N/A
Friday 09/11/2026 07:42 PM 4.33 N/A
Friday 09/11/2026 07:48 PM 4.36 N/A
Friday 09/11/2026 07:54 PM 4.39 N/A
Friday 09/11/2026 08:00 PM 4.42 N/A
Friday 09/11/2026 08:06 PM 4.45 N/A
Friday 09/11/2026 08:12 PM 4.46 N/A
Friday 09/11/2026 08:18 PM 4.47 N/A
Friday 09/11/2026 08:24 PM 4.47 N/A
Friday 09/11/2026 08:30 PM 4.47 N/A
Friday 09/11/2026 08:36 PM 4.46 N/A
Friday 09/11/2026 08:42 PM 4.44 N/A
Friday 09/11/2026 08:48 PM 4.40 N/A
Friday 09/11/2026 08:54 PM 4.36 N/A
Friday 09/11/2026 09:00 PM 4.31 N/A
Friday 09/11/2026 09:06 PM 4.25 N/A
Friday 09/11/2026 09:12 PM 4.18 N/A
Friday 09/11/2026 09:18 PM 4.10 N/A
Friday 09/11/2026 09:24 PM 4.03 N/A
Friday 09/11/2026 09:30 PM 3.96 N/A

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