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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: Monday May 4th, 2026 10:30 AM 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)
  Monday 05/04/2026 02:00 PM 3.10 0.20
  Monday 05/04/2026 08:00 PM 3.10 0.20
  Tuesday 05/05/2026 02:00 AM 3.00 0.17
  Tuesday 05/05/2026 08:00 AM 3.00 0.17
  Tuesday 05/05/2026 02:00 PM 3.00 0.17
  Tuesday 05/05/2026 08:00 PM 2.90 0.15
  Wednesday 05/06/2026 02:00 AM 2.90 0.15

Observation
  Date (EDT) Stage (ft) Flow (kcfs)
Monday 05/04/2026 10:30 AM 3.13 0.21
Monday 05/04/2026 10:15 AM 3.13 0.21
Monday 05/04/2026 10:00 AM 3.13 0.21
Monday 05/04/2026 09:45 AM 3.13 0.21
Monday 05/04/2026 09:30 AM 3.14 0.21
Monday 05/04/2026 09:16 AM 3.14 0.21
Monday 05/04/2026 09:15 AM 3.14 0.21
Monday 05/04/2026 09:00 AM 3.14 0.21
Monday 05/04/2026 08:45 AM 3.14 0.21
Monday 05/04/2026 08:30 AM 3.14 0.21
Monday 05/04/2026 08:15 AM 3.14 0.21
Monday 05/04/2026 08:00 AM 3.15 0.22
Monday 05/04/2026 07:45 AM 3.15 0.22
Monday 05/04/2026 07:30 AM 3.15 0.22
Monday 05/04/2026 07:15 AM 3.15 0.22
Monday 05/04/2026 07:00 AM 3.15 0.22
Monday 05/04/2026 06:45 AM 3.15 0.22
Monday 05/04/2026 06:30 AM 3.15 0.22
Monday 05/04/2026 06:15 AM 3.14 0.21
Monday 05/04/2026 06:00 AM 3.14 0.21
Monday 05/04/2026 05:45 AM 3.14 0.21
Monday 05/04/2026 05:30 AM 3.14 0.21
Monday 05/04/2026 05:15 AM 3.13 0.21
Monday 05/04/2026 05:00 AM 3.13 0.21
Monday 05/04/2026 04:45 AM 3.13 0.21
Monday 05/04/2026 04:30 AM 3.13 0.21
Monday 05/04/2026 04:15 AM 3.13 0.21
Monday 05/04/2026 04:00 AM 3.12 0.21
Monday 05/04/2026 03:45 AM 3.12 0.21
Monday 05/04/2026 03:30 AM 3.12 0.21

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