Flash Flood Warning — New London County, Connecticut
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Current Status
🌊 Active: Flash Flood Warning
Flash Flood Warning issued August 3 at 9:57AM EDT until August 3 at 1:00PM EDT by NWS Upton NY
FFWOKX The National Weather Service in Upton has issued a * Flash Flood Warning for... Middlesex County in southern Connecticut... Southeastern New Haven County in southern Connecticut... New London County in southern Connecticut... * Until 100 PM EDT. * At 957 AM EDT, Doppler radar indicated heavy downpours and thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen over the last 6 hours. Rainfall rate of 1 to 2 inches in 1 hour are likely. Additional rainfall amounts of 1 to 3 inches are possible in the warned area through 1pm. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. 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, Middletown, Norwich, New London, Guilford, Colchester, Cli
Effective August 3, 2026 at 9:57 AM ET · Expires August 3, 2026 at 1:00 PM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Upton NY
Expires
August 3, 2026 at 1:00 PM ET
Last Checked
2 minutes ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Stay away or be swept away. River banks and culverts can become unstable and unsafe.
Also In Effect For
This same Flash Flood Warning also covers:
Other Active Alerts in Connecticut
Flash Flood Warning
Flash Flood Warning
Get Flash Flood Warning Alerts for New London County
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Frequently Asked Questions
What does a Flash Flood Warning mean for New London County, Connecticut?
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Is this Flash Flood Warning currently active?
Yes — this alert is active as of our last check (2 minutes ago). It's set to expire August 3, 2026 at 1:00 PM ET.
How do I get notified about Flash Flood Warning alerts for New London County?
Download StormCast free on Google Play and set New London County, Connecticut as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flash Flood Warning is also in effect for Middlesex County, New Haven County.