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: Tuesday September 8th, 2026 08:36 PM CDT
River Status: Normal

  Height Flow
Currently 2.55 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
  Tuesday 09/08/2026 08:00 PM 2.73 N/A
  Tuesday 09/08/2026 09:00 PM 2.30 N/A
  Tuesday 09/08/2026 10:00 PM 1.89 N/A
  Tuesday 09/08/2026 11:00 PM 1.50 N/A
  Wednesday 09/09/2026 12:00 AM 1.23 N/A
  Wednesday 09/09/2026 01:00 AM 1.27 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Tuesday 09/08/2026 06:36 PM 3.36 N/A
Tuesday 09/08/2026 06:42 PM 3.33 N/A
Tuesday 09/08/2026 06:48 PM 3.35 N/A
Tuesday 09/08/2026 06:54 PM 3.35 N/A
Tuesday 09/08/2026 07:00 PM 3.32 N/A
Tuesday 09/08/2026 07:06 PM 3.26 N/A
Tuesday 09/08/2026 07:12 PM 3.20 N/A
Tuesday 09/08/2026 07:18 PM 3.15 N/A
Tuesday 09/08/2026 07:24 PM 3.12 N/A
Tuesday 09/08/2026 07:30 PM 3.07 N/A
Tuesday 09/08/2026 07:36 PM 3.02 N/A
Tuesday 09/08/2026 07:42 PM 2.96 N/A
Tuesday 09/08/2026 07:48 PM 2.91 N/A
Tuesday 09/08/2026 07:54 PM 2.85 N/A
Tuesday 09/08/2026 08:00 PM 2.81 N/A
Tuesday 09/08/2026 08:06 PM 2.76 N/A
Tuesday 09/08/2026 08:12 PM 2.71 N/A
Tuesday 09/08/2026 08:18 PM 2.67 N/A
Tuesday 09/08/2026 08:24 PM 2.62 N/A
Tuesday 09/08/2026 08:30 PM 2.58 N/A

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