Headline:
Flash Flood Warning issued July 21 at 1:18PM EDT until July 21 at 3:00PM EDT by NWS Upton NY
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
July 21, 2026 - 10:18am
Expires:
July 21, 2026 - 12:00pm
Description:
At 118 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, Milford,
Shelton, Naugatuck, Southbury, New Canaan, Wolcott, Newtown,
Fairfield, Greenwich, Hamden, Stratford, Trumbull, Cheshire,
Westport and North Haven.
Instruction:
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.
Area Description:
Fairfield, CT; New Haven, CT
Forcast Office:
NWS Upton NY
Sender: