MASSACHUSETTS FLOW REPORT

Last Updated: January 2, 2026

Streamflow conditions in Massachusetts show a mixture of below-normal flows and occasional spikes that could concern river users and water enthusiasts. Many rivers across the state, including the Merrimack, Nashua, Sudbury, Assabet, and Concord Rivers, are experiencing lower-than-average streamflows, with the Nashua River at East Pepperell and Sudbury River at Saxonville dropping to 69.47% and 64.08% below normal, respectively. The current streamflow of the Merrimack River at Lowell is 8,130 cubic feet per second (cfs), a notable decrease in flow. Conversely, the Ware River at Gibbs Crossing experienced a significant increase over the last 24 hours, with a 92.16% spike in streamflow, bringing the flow rate up to 392 cfs. These fluctuations highlight the variability in river conditions, which could impact recreational activities and local ecosystems.

Specific rivers that stand out include the Connecticut River at Montague City with a streamflow of 12,500 cfs and a gage height of 11.35 feet, indicating a recent drop in water level, while the Blackstone River at Northbridge flows above the norm at 5.98% more than usual. These contrasting conditions illustrate the diverse hydrological state of Massachusetts' rivers. Notably, the East Branch of the Housatonic River at Coltsville experienced a dramatic surge in streamflow, with a 356.73% change in the last day, suggesting potential flooding concerns. These insights are crucial for communities along these rivers, including Lowell, Pepperell, Holyoke, and areas near the Housatonic and Hoosic Rivers, where residents, as well as whitewater enthusiasts, should stay updated on changing river conditions. With the range of flow conditions across the state, water users should exercise caution, particularly during transitional weather periods, which can lead to sudden streamflow changes and affect both safety and water resources management.