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 October 23rd, 2026 05:30 PM EDT
River Status: Normal

  Height Flow
Currently 3.3 ft 2.42 kcfs
Record 26.2 ft N/A

Observation
  Date (EDT) Stage (ft) Flow (kcfs)
Friday 10/23/2026 05:30 PM 3.30 2.42
Friday 10/23/2026 05:15 PM 3.31 2.43
Friday 10/23/2026 05:00 PM 3.32 2.45
Friday 10/23/2026 04:45 PM 3.32 2.45
Friday 10/23/2026 04:30 PM 3.34 2.48
Friday 10/23/2026 04:15 PM 3.35 2.49
Friday 10/23/2026 04:00 PM 3.36 2.51
Friday 10/23/2026 03:45 PM 3.37 2.52
Friday 10/23/2026 03:30 PM 3.38 2.54
Friday 10/23/2026 03:15 PM 3.38 2.54
Friday 10/23/2026 03:00 PM 3.40 2.57
Friday 10/23/2026 02:45 PM 3.38 2.54
Friday 10/23/2026 02:30 PM 3.41 2.58
Friday 10/23/2026 02:15 PM 3.42 2.60
Friday 10/23/2026 02:00 PM 3.43 2.61
Friday 10/23/2026 01:45 PM 3.44 2.63
Friday 10/23/2026 01:30 PM 3.45 2.64
Friday 10/23/2026 01:15 PM 3.45 2.64
Friday 10/23/2026 01:00 PM 3.47 2.67
Friday 10/23/2026 12:45 PM 3.47 2.67
Friday 10/23/2026 12:30 PM 3.48 2.69
Friday 10/23/2026 12:15 PM 3.50 2.72
Friday 10/23/2026 12:00 PM 3.50 2.72
Friday 10/23/2026 11:45 AM 3.51 2.74
Friday 10/23/2026 11:30 AM 3.51 2.74
Friday 10/23/2026 11:15 AM 3.52 2.76
Friday 10/23/2026 11:00 AM 3.53 2.77
Friday 10/23/2026 10:45 AM 3.53 2.77
Friday 10/23/2026 10:30 AM 3.54 2.79
Friday 10/23/2026 10:15 AM 3.54 2.79

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