Torrential Downpours, Flash Flooding Possible Sunday: CT Weather Alert

CONNECTICUT — Connecticut could see severe flooding on Sunday, with heavy rain and thunderstorms expected to move across the state from early morning into the afternoon.

The National Weather Service has issued a flood watch for multiple parts of Connecticut. Torrential downpours could produce flash flooding, particularly in urban areas and locations prone to flooding, according to NWS.

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The heaviest rain is expected Sunday morning into midday, although showers and thunderstorms could begin developing late Saturday night. The National Weather Service says rainfall across southern Connecticut could average 1.5 to 3 inches, with locally higher amounts of 5 to 7 inches possible.

The heaviest rainfall could come down extremely quickly. Peak rainfall rates could reach 2 to 2.5 inches per hour, which could lead to the rapid rise of water on roads, streams and in low-lying areas.

The NWS says excessive runoff could result in flooding of rivers, creeks, streams and other flood-prone locations.

A flood watch has been issued for the following counties in Connecticut from Sunday morning through Sunday afternoon: New Haven County, Middlesex County, London County and Southern Farifield County.

Forecasters caution that the exact location of the heaviest rain remains uncertain. A narrow band of torrential rainfall could produce significantly higher totals over a relatively small area.

The combination of heavy rainfall and high rainfall rates could create dangerous driving conditions Sunday morning.

Water may quickly collect on roadways, particularly in areas with poor drainage. Residents should avoid driving through flooded roads and should be prepared to turn around if they encounter standing or moving water, according to the NWS.

Meanwhile, anyone living in an area that has flooded previously should be prepared to take action if a flood warning is issued

The NWS is urging residents to monitor later forecasts and remain alert for possible flood warnings as the storm system moves through.

The flooding concern isn't limited to Connecticut. Flood watches have also been issues for portions of southeastern New York and Long Island, Rhode Island and portions of eastern and southeastern Massachusetts.