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: Thursday May 21st, 2026 02:30 PM EDT
River Status: Normal

  Height Flow
Currently 3.13 ft 0.211 kcfs
Record 16.2 ft 16900 cfs

Forecast
  Date (EDT) Stage (ft) Flow (kcfs)
  Thursday 05/21/2026 02:00 PM 3.10 0.20
  Thursday 05/21/2026 08:00 PM 3.10 0.20
  Friday 05/22/2026 02:00 AM 3.10 0.20
  Friday 05/22/2026 08:00 AM 3.10 0.20
  Friday 05/22/2026 02:00 PM 3.10 0.20
  Friday 05/22/2026 08:00 PM 3.10 0.20
  Saturday 05/23/2026 02:00 AM 3.10 0.20

Observation
  Date (EDT) Stage (ft) Flow (kcfs)
Thursday 05/21/2026 03:30 PM 3.13 0.21
Thursday 05/21/2026 03:15 PM 3.13 0.21
Thursday 05/21/2026 03:00 PM 3.13 0.21
Thursday 05/21/2026 02:45 PM 3.13 0.21
Thursday 05/21/2026 02:30 PM 3.13 0.21
Thursday 05/21/2026 02:15 PM 3.13 0.21
Thursday 05/21/2026 02:00 PM 3.13 0.21
Thursday 05/21/2026 01:45 PM 3.13 0.21
Thursday 05/21/2026 01:30 PM 3.13 0.21
Thursday 05/21/2026 01:15 PM 3.13 0.21
Thursday 05/21/2026 01:00 PM 3.13 0.21
Thursday 05/21/2026 12:45 PM 3.13 0.21
Thursday 05/21/2026 12:30 PM 3.13 0.21
Thursday 05/21/2026 12:15 PM 3.13 0.21
Thursday 05/21/2026 12:00 PM 3.14 0.21
Thursday 05/21/2026 11:45 AM 3.14 0.21
Thursday 05/21/2026 11:30 AM 3.13 0.21
Thursday 05/21/2026 11:15 AM 3.14 0.21
Thursday 05/21/2026 11:01 AM 3.13 0.21
Thursday 05/21/2026 11:00 AM 3.13 0.21
Thursday 05/21/2026 10:45 AM 3.14 0.21
Thursday 05/21/2026 10:30 AM 3.13 0.21
Thursday 05/21/2026 10:15 AM 3.14 0.21
Thursday 05/21/2026 10:00 AM 3.14 0.21
Thursday 05/21/2026 09:45 AM 3.13 0.21
Thursday 05/21/2026 09:30 AM 3.14 0.21
Thursday 05/21/2026 09:15 AM 3.14 0.21
Thursday 05/21/2026 09:00 AM 3.14 0.21
Thursday 05/21/2026 08:45 AM 3.14 0.21
Thursday 05/21/2026 08:30 AM 3.14 0.21

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