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 August 21st, 2026 12:24 PM CDT
River Status: Normal

  Height Flow
Currently 1.86 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 08/21/2026 10:00 AM 1.31 N/A
  Friday 08/21/2026 11:00 AM 1.32 N/A
  Friday 08/21/2026 12:00 PM 1.62 N/A
  Friday 08/21/2026 01:00 PM 2.05 N/A
  Friday 08/21/2026 02:00 PM 2.38 N/A
  Friday 08/21/2026 03:00 PM 2.50 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Friday 08/21/2026 10:36 AM 1.34 N/A
Friday 08/21/2026 10:42 AM 1.35 N/A
Friday 08/21/2026 10:48 AM 1.36 N/A
Friday 08/21/2026 10:54 AM 1.39 N/A
Friday 08/21/2026 11:00 AM 1.40 N/A
Friday 08/21/2026 11:06 AM 1.42 N/A
Friday 08/21/2026 11:12 AM 1.45 N/A
Friday 08/21/2026 11:18 AM 1.48 N/A
Friday 08/21/2026 11:24 AM 1.51 N/A
Friday 08/21/2026 11:30 AM 1.53 N/A
Friday 08/21/2026 11:36 AM 1.56 N/A
Friday 08/21/2026 11:42 AM 1.59 N/A
Friday 08/21/2026 11:48 AM 1.63 N/A
Friday 08/21/2026 11:54 AM 1.66 N/A
Friday 08/21/2026 12:00 PM 1.73 N/A
Friday 08/21/2026 12:06 PM 1.73 N/A
Friday 08/21/2026 12:12 PM 1.76 N/A
Friday 08/21/2026 12:18 PM 1.88 N/A
Friday 08/21/2026 12:24 PM 1.86 N/A
Friday 08/21/2026 12:30 PM 1.87 N/A

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