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Local Info
Critical Stages
50' - Action52' - Flood54' - Moderate Flood58' - Major Flood
Merrimack River - Gauge LOWM3
Lowell, MA
Lat: 42.65N, Lon: 71.30W
 
Latest Observation
 Updated: 10:30 PM EDT 10/8/25
Stage:41.3 ft
Flow:0.938 kcfs*
* Thousand cubic feet per second
Forecast
hydrograph
Flood Impacts
Historical Crests

Data provided by NOAA Advanced Hydrologic Prediction Service

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