Town of New Canaan Office of Emergency Management

08/26/2026

.FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...

* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...Portions of southern Connecticut, including the following
areas, Northern Fairfield and Southern Fairfield, northeast New
Jersey, including the following areas, Eastern Bergen, Eastern
Essex, Eastern Passaic, Eastern Union, Hudson, Western Bergen,
Western Essex, Western Passaic and Western Union, and southeast New
York, including the following areas, Bronx, Kings (Brooklyn), New
York (Manhattan), Northern Nassau, Northern Queens, Northern
Westchester, Orange, Putnam, Richmond (Staten Island), Rockland,
Southern Nassau, Southern Queens and Southern Westchester.

* WHEN...From Thursday afternoon through Thursday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas.

* ADDITIONAL DETAILS...
- Total rainfall amounts are around 1 to 1.5 inches in the watch
area, but some areas could receive up to 3 inches with peak
rainfall rates between 1.5 to 2.5 in/hr.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

Flooding is a coast-to-coast threat to some part of the United States and its territories nearly every day of the year. This site is designed to teach you how to stay safe in a flood event. If you know what to do before, during, and after a flood you can increase your chances of survival and bet...

08/20/2026

07/28/2026

Flood Watch
National Weather Service New York NY
253 AM EDT Tue Jul 28 2026
..FLOOD WATCH IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH
WEDNESDAY EVENING...

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...A portion of southern Connecticut, including the following
areas, Northern Fairfield, Northern New Haven, Southern Fairfield
and Southern New Haven.

* WHEN...From 2 PM EDT this afternoon through Wednesday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- A slow moving low pressure system will bring multiple rounds
of heavy showers and thunderstorms to the area today through
Wednesday. Average rainfall amounts are expected to be
between 3 and 5 inches with localized higher amounts. Peak
hourly rainfall rates could be as high as 2 to 3 inches in
the heaviest showers and thunderstorms.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

Flooding is a coast-to-coast threat to some part of the United States and its territories nearly every day of the year. This site is designed to teach you how to stay safe in a flood event. If you know what to do before, during, and after a flood you can increase your chances of survival and bet...

07/21/2026

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New York NY
1201 PM EDT Tue Jul 21 2026

The National Weather Service in Upton has issued a

* Flash Flood Warning for...
Fairfield County in southern Connecticut...
Western New Haven County in southern Connecticut...

* Until 300 PM EDT.

* At 1201 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1 and 2 inches of rain have fallen. The expected rainfall rate is
1 to 2.5 inches in 1 hour. Additional rainfall amounts of 1 to 2
inches are possible in the warned area. Flash flooding is ongoing
or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and automated gauges.

IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
Bridgeport, New Haven, Stamford, Waterbury, Norwalk, Danbury,
Milford, Shelton, Naugatuck, Southbury, New Canaan, Wolcott,
Newtown, Fairfield, Greenwich, Hamden, Stratford, Trumbull,
Cheshire and Westport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Excessive runoff from heavy rainfall will cause flooding of urban
areas, highways, streets and underpasses as well as other drainage
areas and low lying spots.

If you are in a basement, be prepared to move to a higher floor.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 4121 7348 4124 7351 4149 7337 4147 7331
4149 7333 4151 7316 4156 7316 4164 7296
4123 7286 4123 7291 4125 7292 4119 7300
4120 7305 4114 7310 4116 7318 4110 7326
4112 7330 4103 7341 4098 7365 4119 7354

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2.5 INCHES IN 1 HOUR

$$

DBR

05/20/2026

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
235 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS

IN CONNECTICUT THIS WATCH INCLUDES 4 COUNTIES

IN SOUTHERN CONNECTICUT

FAIRFIELD MIDDLESEX NEW HAVEN
NEW LONDON

IN NEW JERSEY THIS WATCH INCLUDES 5 COUNTIES

IN NORTHEAST NEW JERSEY

BERGEN ESSEX HUDSON
PASSAIC UNION

IN NEW YORK THIS WATCH INCLUDES 11 COUNTIES

IN SOUTHEAST NEW YORK

BRONX KINGS (BROOKLYN) NASSAU
NEW YORK (MANHATTAN) ORANGE PUTNAM
QUEENS RICHMOND (STATEN ISLAND)
ROCKLAND SUFFOLK WESTCHESTER

04/17/2026

New Canaan Health and Emergency Management participated in a regional "Point of Distribution" drill today in Westport, simulating medical supply distribution in the event of an emergency.