Pomperaug River at Southbury, CT

Naugatuck Valley Planning Region, Connecticut · USGS gauge 01204000 · NWS SBYC3 · Connecticut river levels

Is Pomperaug River at Southbury, CT flooding right now?

Pomperaug River at Southbury, CT measured 2.84 ft on 2026-09-11 01:00:00 UTC. That observation was 6.2 ft below its 9 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height

2.84 ft

as of 78 min ago

Streamflow

51 cfs

data refreshed 16 min ago

Minor flooding here begins at 9 ft, with major flooding at 12 ft. The highest crest on record was 21.8 ft on Fri, Aug 19, 1955.

Streamflow outlook

NOAA National Water Model forecast, issued 14 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

Category	Stage	Current distance
Action	8.5 ft	5.7 ft below
Minor flood	9 ft	6.2 ft below
Moderate flood	10 ft	7.2 ft below
Major flood	12 ft	9.2 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

Stage	Date
21.8 ft	1955-08-19
17.66 ft	2011-03-07
15.92 ft	1987-04-04
14.18 ft	1982-06-05
13.85 ft	2007-04-16

Nearby gauges

Gauge	Distance	County
Pootatuck River at Sandy Hook, CT	5.2 mi	Western Connecticut Planning Region
Weekeepeemee River at Hotchkissville, CT	5.2 mi	Naugatuck Valley Planning Region
Pootatuck River at Berkshire	5.8 mi	Western Connecticut Planning Region
Nonewaug River at Minortown, CT	7.0 mi	Naugatuck Valley Planning Region
Shepaug River near Roxbury, CT	7.2 mi	Northwest Hills 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