Flood Advisory — Middlesex County, Connecticut
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Current Status
🌊 Active: Flood Advisory
Flood Advisory issued August 3 at 8:25AM EDT until August 3 at 11:30AM EDT by NWS Upton NY
* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...A portion of southern Connecticut, including the following counties, Middlesex and New London. * WHEN...Until 1130 AM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 825 AM EDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 0.5 and 1.5 inches of rain have fallen. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Jewett City, Norwich, New London, Colchester, Clinton, Groton, Old Saybrook, Salem, Chester, Mystic, Waterford, East Lyme, Ledyard, Griswold, East Haddam, Old Lyme, Lebanon, Westbrook, Killingworth and Preston. - http://www.weather.gov/safety/flood
Effective August 3, 2026 at 8:25 AM ET · Expires August 3, 2026 at 11:30 AM ET
Event Details
Event Type
Flood Advisory
Severity
minor
Issued By
NWS Upton NY
Expires
August 3, 2026 at 11:30 AM ET
Last Checked
1 minute ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Also In Effect For
This same Flood Advisory also covers:
Other Active Alerts in Connecticut
Flash Flood Warning
Flood Advisory
Flash Flood Warning
Flash Flood Warning
Get Flood Advisory Alerts for Middlesex County
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Frequently Asked Questions
What does a Flood Advisory mean for Middlesex County, Connecticut?
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Is this Flood Advisory currently active?
Yes — this alert is active as of our last check (1 minute ago). It's set to expire August 3, 2026 at 11:30 AM ET.
How do I get notified about Flood Advisory alerts for Middlesex County?
Download StormCast free on Google Play and set Middlesex 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 Flood Advisory is also in effect for New London County.