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Colebrook, CT Warnings, Watches and Advisories

NWS Active Alerts for CT - Map View

State: CT Total alerts: 3 Updated: Sep 13, 2026 2:23pm EDT

Flood Watch

Area
Windham; Southern Worcester; Western Norfolk; Suffolk; Eastern Norfolk
Flood Watch issued September 13 at 1:55PM EDT until September 13 at 6:00PM EDT by NWS Boston/Norton MA

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of eastern Connecticut and south central Massachusetts. * WHEN...Until 6 PM EDT this evening. * IMPACTS...Excessive runoff may result in flooding of low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Isolated heavy downpour this afternoon over saturated grounds may lead to isolated instances of flash flooding. - http://www.weather.gov/safety/flood

Flash Flood Warning

Area
Middlesex, CT; New London, CT
Flash Flood Warning issued September 13 at 12:44PM EDT until September 13 at 2:30PM EDT by NWS Upton NY

FFWOKX 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.

Coastal Flood Statement

Area
Southern Fairfield
Coastal Flood Statement issued September 13 at 2:37AM EDT until September 13 at 3:00PM EDT by NWS Upton NY

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Fairfield County. * WHEN...From noon EDT today through this afternoon. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline.

SAFETY and DATA MESSAGE

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Colebrook.

Use the Radar Maps link provided to understand the trajectory of a storm.

For more official information about severe storms and how to stay safe, visit the National Weather Service's Severe Thunderstorm Safety page. We encourage you to also monitor Excessive Rainfall Forecasts on their Weather Prediction Center website.

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