Active Weather Alerts
Flash Flood Warning
Issued: 4:45 PM Sep. 13, 2026 – National Weather Service
The National Weather Service in Upton has extended the * Flash Flood Warning for... Central Middlesex County in southern Connecticut... New London County in southern Connecticut... * Until 230 PM EDT. * At 1244 PM EDT, Doppler radar and automated rain gauges indicated heavy rain falling across the warned area. Between 1 and 3.5 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by heavy rain. 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... Jewett City, Norwich, New London, Colchester, Groton, Salem, Mystic, Waterford, East Lyme, Ledyard, Griswold, East Haddam, Old Lyme, Lebanon, Preston, Lisbon, Sprague, Bozrah, Voluntown and Lyme. 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. && FLASH FLOOD...RADAR AND GAUGE INDICATED; EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
Flood Watch
Issued: 4:02 PM Sep. 13, 2026 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Flooding caused by excessive rainfall continues to be 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...Until 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 may lead to flooding. Average total rainfall amounts are forecast to range from 1 to 3 inches, with localized amounts greater than 5 inches possible. Peak hourly rates could exceed 1 inch per hour. - 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. &&
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