Souhegan River At Merrimack

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Hydrograph

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

Latest Observation: Tuesday April 21st, 2026 03:30 AM EDT
River Status: Normal

  Height Flow
Currently 3.26 ft 0.255 kcfs
Record 16.2 ft 16900 cfs

Forecast
  Date (EDT) Stage (ft) Flow (kcfs)
  Monday 04/20/2026 02:00 PM 3.30 0.27
  Monday 04/20/2026 08:00 PM 3.30 0.27
  Tuesday 04/21/2026 02:00 AM 3.30 0.27
  Tuesday 04/21/2026 08:00 AM 3.30 0.27
  Tuesday 04/21/2026 02:00 PM 3.20 0.23
  Tuesday 04/21/2026 08:00 PM 3.20 0.23
  Wednesday 04/22/2026 02:00 AM 3.20 0.23

Observation
  Date (EDT) Stage (ft) Flow (kcfs)
Tuesday 04/21/2026 03:30 AM 3.26 0.26
Tuesday 04/21/2026 03:15 AM 3.26 0.26
Tuesday 04/21/2026 03:00 AM 3.26 0.26
Tuesday 04/21/2026 02:45 AM 3.26 0.26
Tuesday 04/21/2026 02:30 AM 3.27 0.26
Tuesday 04/21/2026 02:15 AM 3.27 0.26
Tuesday 04/21/2026 02:02 AM 3.27 0.26
Tuesday 04/21/2026 02:00 AM 3.27 0.26
Tuesday 04/21/2026 01:45 AM 3.27 0.26
Tuesday 04/21/2026 01:30 AM 3.27 0.26
Tuesday 04/21/2026 01:15 AM 3.27 0.26
Tuesday 04/21/2026 01:00 AM 3.27 0.26
Tuesday 04/21/2026 12:45 AM 3.27 0.26
Tuesday 04/21/2026 12:30 AM 3.27 0.26
Tuesday 04/21/2026 12:15 AM 3.27 0.26
Tuesday 04/21/2026 12:00 AM 3.28 0.26
Monday 04/20/2026 11:45 PM 3.28 0.26
Monday 04/20/2026 11:30 PM 3.28 0.26
Monday 04/20/2026 11:15 PM 3.28 0.26
Monday 04/20/2026 11:00 PM 3.28 0.26
Monday 04/20/2026 10:45 PM 3.28 0.26
Monday 04/20/2026 10:30 PM 3.28 0.26
Monday 04/20/2026 10:15 PM 3.28 0.26
Monday 04/20/2026 10:00 PM 3.28 0.26
Monday 04/20/2026 09:45 PM 3.28 0.26
Monday 04/20/2026 09:30 PM 3.28 0.26
Monday 04/20/2026 09:15 PM 3.27 0.26
Monday 04/20/2026 09:00 PM 3.28 0.26
Monday 04/20/2026 08:45 PM 3.28 0.26
Monday 04/20/2026 08:30 PM 3.28 0.26

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