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Souhegan River At Merrimack

Back to River Summary

Hydrograph

Stage Color Key
8 ft - Near Flood 9 ft - Minor Flood 11 ft - Moderate Flood 13 ft - Major Flood

Latest Observation: Friday September 11th, 2026 12:30 PM EDT
River Status: Normal

  Height Flow
Currently 2.23 ft 0.0348 kcfs
Record 16.2 ft 16900 cfs

Forecast
  Date (EDT) Stage (ft) Flow (kcfs)
  Friday 09/11/2026 02:00 PM 2.20 0.03
  Friday 09/11/2026 08:00 PM 2.20 0.03
  Saturday 09/12/2026 02:00 AM 2.20 0.03
  Saturday 09/12/2026 08:00 AM 2.20 0.03
  Saturday 09/12/2026 02:00 PM 2.20 0.03
  Saturday 09/12/2026 08:00 PM 2.20 0.03
  Sunday 09/13/2026 02:00 AM 2.20 0.03

Observation
  Date (EDT) Stage (ft) Flow (kcfs)
Friday 09/11/2026 12:30 PM 2.23 0.03
Friday 09/11/2026 12:15 PM 2.23 0.03
Friday 09/11/2026 12:00 PM 2.23 0.03
Friday 09/11/2026 11:45 AM 2.23 0.03
Friday 09/11/2026 11:30 AM 2.23 0.03
Friday 09/11/2026 11:15 AM 2.24 0.04
Friday 09/11/2026 11:00 AM 2.24 0.04
Friday 09/11/2026 10:45 AM 2.24 0.04
Friday 09/11/2026 10:30 AM 2.23 0.03
Friday 09/11/2026 10:15 AM 2.24 0.04
Friday 09/11/2026 10:00 AM 2.24 0.04
Friday 09/11/2026 09:45 AM 2.24 0.04
Friday 09/11/2026 09:30 AM 2.24 0.04
Friday 09/11/2026 09:15 AM 2.24 0.04
Friday 09/11/2026 09:00 AM 2.24 0.04
Friday 09/11/2026 08:45 AM 2.24 0.04
Friday 09/11/2026 08:30 AM 2.24 0.04
Friday 09/11/2026 08:15 AM 2.24 0.04
Friday 09/11/2026 08:00 AM 2.24 0.04
Friday 09/11/2026 07:45 AM 2.24 0.04
Friday 09/11/2026 07:30 AM 2.25 0.04
Friday 09/11/2026 07:15 AM 2.25 0.04
Friday 09/11/2026 07:00 AM 2.25 0.04
Friday 09/11/2026 06:45 AM 2.25 0.04
Friday 09/11/2026 06:30 AM 2.25 0.04
Friday 09/11/2026 06:15 AM 2.25 0.04
Friday 09/11/2026 06:00 AM 2.25 0.04
Friday 09/11/2026 05:45 AM 2.25 0.04
Friday 09/11/2026 05:30 AM 2.25 0.04
Friday 09/11/2026 05:15 AM 2.25 0.04

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