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: Saturday July 4th, 2026 12:30 AM CDT
River Status: Normal

  Height Flow
Currently 4.33 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
  Friday 07/03/2026 05:00 PM 2.79 N/A
  Friday 07/03/2026 06:00 PM 2.64 N/A
  Friday 07/03/2026 07:00 PM 2.75 N/A
  Friday 07/03/2026 08:00 PM 3.27 N/A
  Friday 07/03/2026 09:00 PM 4.20 N/A
  Friday 07/03/2026 10:00 PM 4.70 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Friday 07/03/2026 10:36 PM 4.63 N/A
Friday 07/03/2026 10:42 PM 4.63 N/A
Friday 07/03/2026 10:48 PM 4.62 N/A
Friday 07/03/2026 10:54 PM 4.63 N/A
Friday 07/03/2026 11:00 PM 4.61 N/A
Friday 07/03/2026 11:06 PM 4.58 N/A
Friday 07/03/2026 11:12 PM 4.55 N/A
Friday 07/03/2026 11:18 PM 4.51 N/A
Friday 07/03/2026 11:24 PM 4.49 N/A
Friday 07/03/2026 11:30 PM 4.46 N/A
Friday 07/03/2026 11:36 PM 4.45 N/A
Friday 07/03/2026 11:42 PM 4.43 N/A
Friday 07/03/2026 11:48 PM 4.42 N/A
Friday 07/03/2026 11:54 PM 4.41 N/A
Saturday 07/04/2026 12:00 AM 4.39 N/A
Saturday 07/04/2026 12:06 AM 4.38 N/A
Saturday 07/04/2026 12:12 AM 4.37 N/A
Saturday 07/04/2026 12:18 AM 4.36 N/A
Saturday 07/04/2026 12:24 AM 4.35 N/A
Saturday 07/04/2026 12:30 AM 4.33 N/A

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