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 January 20th, 2026 04:30 PM EST
River Status: Normal

  Height Flow
Currently 2.84 ft 0.131 kcfs
Record 16.2 ft 16900 cfs

Forecast
  Date (EST) Stage (ft) Flow (kcfs)
  Tuesday 01/20/2026 01:00 PM 3.00 0.17
  Tuesday 01/20/2026 07:00 PM 3.00 0.17
  Wednesday 01/21/2026 01:00 AM 3.00 0.17
  Wednesday 01/21/2026 07:00 AM 3.00 0.17
  Wednesday 01/21/2026 01:00 PM 3.00 0.17
  Wednesday 01/21/2026 07:00 PM 3.00 0.17
  Thursday 01/22/2026 01:00 AM 3.00 0.17

Observation
  Date (EST) Stage (ft) Flow (kcfs)
Tuesday 01/20/2026 04:30 PM 2.84 0.13
Tuesday 01/20/2026 04:15 PM 2.84 0.13
Tuesday 01/20/2026 04:02 PM 2.86 0.14
Tuesday 01/20/2026 04:00 PM 2.86 0.14
Tuesday 01/20/2026 03:45 PM 2.86 0.14
Tuesday 01/20/2026 03:30 PM 2.87 0.14
Tuesday 01/20/2026 03:15 PM 2.88 0.14
Tuesday 01/20/2026 03:00 PM 2.89 0.14
Tuesday 01/20/2026 02:45 PM 2.89 0.14
Tuesday 01/20/2026 02:30 PM 2.89 0.14
Tuesday 01/20/2026 02:15 PM 2.90 0.15
Tuesday 01/20/2026 02:00 PM 2.90 0.15
Tuesday 01/20/2026 01:45 PM 2.90 0.15
Tuesday 01/20/2026 01:30 PM 2.90 0.15
Tuesday 01/20/2026 01:15 PM 2.90 0.15
Tuesday 01/20/2026 01:00 PM 2.90 0.15
Tuesday 01/20/2026 12:45 PM 2.90 0.15
Tuesday 01/20/2026 12:30 PM 2.90 0.15
Tuesday 01/20/2026 12:15 PM 2.90 0.15
Tuesday 01/20/2026 12:00 PM 2.90 0.15
Tuesday 01/20/2026 11:45 AM 2.90 0.15
Tuesday 01/20/2026 11:30 AM 2.90 0.15
Tuesday 01/20/2026 11:15 AM 2.89 0.14
Tuesday 01/20/2026 11:00 AM 2.89 0.14
Tuesday 01/20/2026 10:45 AM 2.89 0.14
Tuesday 01/20/2026 10:30 AM 2.89 0.14
Tuesday 01/20/2026 10:15 AM 2.88 0.14
Tuesday 01/20/2026 10:01 AM 2.87 0.14
Tuesday 01/20/2026 10:00 AM 2.87 0.14
Tuesday 01/20/2026 09:47 AM 2.87 0.14

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