Connecticut, New York Severe Flood Watch | Effective 09/12/2026 23:07

Headline: 
Flood Watch issued September 13 at 2:07AM EDT until September 13 at 2:00PM EDT by NWS Upton NY
Event: 
Flood Watch
Urgency: 
Future
Effective: 
September 12, 2026 - 11:07pm
Expires: 
September 13, 2026 - 9:00am
Description: 
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of southern Connecticut, including the following areas, Northern Middlesex, Northern New London, Southern Fairfield, Southern Middlesex, Southern New Haven and Southern New London and southeast New York, including the following areas, Northeast Suffolk, Northern Nassau, Northwest Suffolk, Southeast Suffolk, Southern Nassau and Southwest Suffolk. * WHEN...From 6 AM this morning to 2 PM EDT this afternoon. * IMPACTS...Excessive runoff may result in flooding in poor drainage areas, rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Showers with heavy downpours and a few thunderstorms early Sunday morning into midday Sunday may lead to flooding. Average rainfall amounts are forecast to range from 1.5 to 2.5 inches with locally higher amounts of 3 to 5 inches possible. Peak hourly rates could reach 2 to 2.5 inches. - http://www.weather.gov/safety/flood
Instruction: 
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.
Area Description: 
Northern Middlesex; Northern New London; Southern Fairfield; Southern New Haven; Southern Middlesex; Southern New London; Northwest Suffolk; Northeast Suffolk; Southwest Suffolk; Southeast Suffolk; Northern Nassau; Southern Nassau
Forcast Office: 
NWS Upton NY
Sender: 
w-nws.webmaster@noaa.gov