Merrimack River At Concord

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Hydrograph

Stage Color Key
12 ft - Near Flood 14 ft - Minor Flood 17 ft - Moderate Flood 20 ft - Major Flood

Latest Observation: Friday June 19th, 2026 03:30 AM EDT
River Status: Normal

  Height Flow
Currently 3.56 ft 2.83 kcfs
Record 26.2 ft N/A

Observation
  Date (EDT) Stage (ft) Flow (kcfs)
Friday 06/19/2026 03:30 AM 3.56 2.83
Friday 06/19/2026 03:15 AM 3.55 2.81
Friday 06/19/2026 03:00 AM 3.55 2.81
Friday 06/19/2026 02:45 AM 3.55 2.81
Friday 06/19/2026 02:30 AM 3.51 2.74
Friday 06/19/2026 02:15 AM 3.53 2.77
Friday 06/19/2026 02:00 AM 3.53 2.77
Friday 06/19/2026 01:45 AM 3.52 2.76
Friday 06/19/2026 01:30 AM 3.52 2.76
Friday 06/19/2026 01:15 AM 3.51 2.74
Friday 06/19/2026 01:00 AM 3.50 2.72
Friday 06/19/2026 12:45 AM 3.49 2.70
Friday 06/19/2026 12:30 AM 3.49 2.70
Friday 06/19/2026 12:15 AM 3.48 2.69
Friday 06/19/2026 12:00 AM 3.47 2.67
Thursday 06/18/2026 11:45 PM 3.46 2.66
Thursday 06/18/2026 11:30 PM 3.45 2.64
Thursday 06/18/2026 11:15 PM 3.44 2.63
Thursday 06/18/2026 11:00 PM 3.43 2.61
Thursday 06/18/2026 10:45 PM 3.42 2.60
Thursday 06/18/2026 10:30 PM 3.41 2.58
Thursday 06/18/2026 10:15 PM 3.40 2.57
Thursday 06/18/2026 10:00 PM 3.39 2.55
Thursday 06/18/2026 09:45 PM 3.39 2.55
Thursday 06/18/2026 09:30 PM 3.38 2.54
Thursday 06/18/2026 09:15 PM 3.37 2.52
Thursday 06/18/2026 09:00 PM 3.36 2.51
Thursday 06/18/2026 08:45 PM 3.35 2.49
Thursday 06/18/2026 08:30 PM 3.35 2.49
Thursday 06/18/2026 08:15 PM 3.36 2.51

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