Connecticut River at Thompsonville, CT

Capitol Planning Region, Connecticut · USGS gauge 01184000 · NWS TMVC3 · Connecticut river levels

Is Connecticut River at Thompsonville, CT flooding right now?

Connecticut River at Thompsonville, CT measured 7.31 ft on 2026-09-11 01:30:00 UTC. That observation was 7.7 ft below its 15 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
7.31 ft
as of 61 min ago
Streamflow
data refreshed 13 min ago

Minor flooding here begins at 15 ft, with major flooding at 19 ft. The highest crest on record was 26.6 ft on Fri, Mar 20, 1936.

Flood forecast

NWS forecast, issued 11 hours ago. Forecasts are issued for select river points and update through the day.

Flood stages at this gauge

CategoryStageCurrent distance
Action14 ft6.7 ft below
Minor flood15 ft7.7 ft below
Moderate flood17 ft9.7 ft below
Major flood19 ft11.7 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
26.6 ft1936-03-20
24.4 ft1938-07-23
20.93 ft1955-08-19
20.8 ft1984-05-31
20.47 ft1933-04-20

Nearby gauges

GaugeDistanceCounty
Stony Brook near West Suffield, CT5.7 miCapitol Planning Region
Broad Brook at Broad Brook, CT5.8 miCapitol Planning Region
Muddy Brook at Ellington, Upper Site7.5 miCapitol Planning Region
Westfield River near Westfield, MA9.5 miHampden County
Farmington River at Tariffville, CT9.6 miCapitol Planning Region
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast