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: Monday September 21st, 2026 04:30 AM CDT
River Status: Normal

  Height Flow
Currently 2.95 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
  Sunday 09/20/2026 05:00 PM 2.19 N/A
  Sunday 09/20/2026 06:00 PM 1.97 N/A
  Sunday 09/20/2026 07:00 PM 1.76 N/A
  Sunday 09/20/2026 08:00 PM 1.59 N/A
  Sunday 09/20/2026 09:00 PM 1.56 N/A
  Sunday 09/20/2026 10:00 PM 1.82 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 09/21/2026 02:36 AM 3.53 N/A
Monday 09/21/2026 02:42 AM 3.53 N/A
Monday 09/21/2026 02:48 AM 3.53 N/A
Monday 09/21/2026 02:54 AM 3.52 N/A
Monday 09/21/2026 03:00 AM 3.50 N/A
Monday 09/21/2026 03:06 AM 3.48 N/A
Monday 09/21/2026 03:12 AM 3.47 N/A
Monday 09/21/2026 03:18 AM 3.44 N/A
Monday 09/21/2026 03:24 AM 3.41 N/A
Monday 09/21/2026 03:30 AM 3.38 N/A
Monday 09/21/2026 03:36 AM 3.34 N/A
Monday 09/21/2026 03:42 AM 3.30 N/A
Monday 09/21/2026 03:48 AM 3.26 N/A
Monday 09/21/2026 03:54 AM 3.22 N/A
Monday 09/21/2026 04:00 AM 3.17 N/A
Monday 09/21/2026 04:06 AM 3.13 N/A
Monday 09/21/2026 04:12 AM 3.08 N/A
Monday 09/21/2026 04:18 AM 3.05 N/A
Monday 09/21/2026 04:24 AM 3.00 N/A
Monday 09/21/2026 04:30 AM 2.95 N/A

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