Connecticut River at Thompsonville

1. 18.00 ftSignificant and widespread flooding along the river can be expected from the Massachusetts towns of Agawam and Longmeadow, through the northern Connecticut towns of Suffield and Enfield.
2. 17.00 ftFlooding will become more widespread along the Connecticut River from the Massachusetts towns of Agawam and Longmeadow, through the northern Connecticut towns of Suffield and Enfield.
3. 16.00 ftFlooding impacts low lying areas along the Connecticut River from the Massachusetts towns of Agawam and Longmeadow, through the northern Connecticut towns of Suffield and Enfield.
4. 15.00 ftLowland flooding will begin along the Connecticut River near Thompsonville.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 21, 2026.

Most recent crests

• May 11, 2025: 15.41 ft
• March 18, 2025: 15.30 ft
• April 14, 2024: 15.53 ft
• March 8, 2024: 15.27 ft
• December 19, 2023: 16.56 ft
• July 12, 2023: 17.01 ft
• December 27, 2020: 15.08 ft
• April 28, 2019: 15.34 ft
• April 23, 2019: 15.18 ft
• April 17, 2019: 15.54 ft

• UpstreamConnecticut River at Springfield
• DownstreamConnecticut River at Hartford
• Broad Brook
• Westfield River at Westfield
• Farmington River at Tariffville
• Farmington River at Simsbury
• Chicopee River at Indian Orchard
• Connecticut River at Holyoke
• Hockanum River at East Hartford

Forecasts by the Northeast River Forecast Center. Forecasts are issued routinely year-round. Stage may be affected by ice.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.