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 August 18th, 2026 11:24 AM CDT
River Status: Normal

  Height Flow
Currently 3.4 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 08/18/2026 10:00 AM 3.18 N/A
  Tuesday 08/18/2026 11:00 AM 3.51 N/A
  Tuesday 08/18/2026 12:00 PM 3.43 N/A
  Tuesday 08/18/2026 01:00 PM 3.18 N/A
  Tuesday 08/18/2026 02:00 PM 2.86 N/A
  Tuesday 08/18/2026 03:00 PM 2.51 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Tuesday 08/18/2026 09:36 AM 2.95 N/A
Tuesday 08/18/2026 09:42 AM 3.00 N/A
Tuesday 08/18/2026 09:48 AM 3.05 N/A
Tuesday 08/18/2026 09:54 AM 3.10 N/A
Tuesday 08/18/2026 10:00 AM 3.16 N/A
Tuesday 08/18/2026 10:06 AM 3.21 N/A
Tuesday 08/18/2026 10:12 AM 3.25 N/A
Tuesday 08/18/2026 10:18 AM 3.29 N/A
Tuesday 08/18/2026 10:24 AM 3.32 N/A
Tuesday 08/18/2026 10:30 AM 3.35 N/A
Tuesday 08/18/2026 10:36 AM 3.37 N/A
Tuesday 08/18/2026 10:42 AM 3.39 N/A
Tuesday 08/18/2026 10:48 AM 3.38 N/A
Tuesday 08/18/2026 10:54 AM 3.40 N/A
Tuesday 08/18/2026 11:00 AM 3.37 N/A
Tuesday 08/18/2026 11:06 AM 3.42 N/A
Tuesday 08/18/2026 11:12 AM 3.42 N/A
Tuesday 08/18/2026 11:18 AM 3.42 N/A
Tuesday 08/18/2026 11:24 AM 3.40 N/A
Tuesday 08/18/2026 11:30 AM 3.38 N/A

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