Flash Flood Warnings Issued For 3 Counties, Severe Storms Rolling Into Connecticut

UPDATE: The National Weather Service in Upton has issued a flash flood warning for southern Fairfield County until 7:15 p.m.

"At 543 PM EDT, local law enforcement reported thunderstorms producing heavy rain across the warned area. Between 1.5 and 2.5 inches of rain have fallen. Additional rainfall amounts of 1 to 2
inches are possible in the warned area. Flash flooding is already occurring."

HAZARD...Flash flooding caused by thunderstorms.

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: Stamford, New Canaan, Greenwich, Hawthorne, Pleasantville, Armonk and Thornwood.

UPDATE: The National Weather Service in Norton has issued a flash flood warning for Hartford County until 6 p.m.

"At 344 PM EDT, Doppler radar indicated that the heavy rain that impacted the region earlier has ended. However...additional showers with heavy rainfall were just south and north of the region. Therefore...the Flash flood warning remains in effect and will continue to monitor the latest radar trends.

HAZARD...Flash flooding caused by heavy rain.

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: Hartford, New Britain, West Hartford, Bristol, Manchester, East Hartford, Enfield, Southington, Glastonbury, Newington, Windsor, Wethersfield, South Windsor, Farmington, Simsbury, Bloomfield, Berlin, Rocky Hill, Avon and Plainville.

UPDATE: The National Weather Service has issued a flash flood warning for northwestern New Haven County and north central Fairfield County in southern Connecticut until 5:30 p.m.

"At 326 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly," according to the weather service

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: Waterbury, Meriden, Middletown, Wallingford, Shelton, Naugatuck, Southbury, Wolcott, Newtown, Hamden, Cheshire, North Haven, Monroe, Seymour, Prospect, Woodbridge, Middlebury, Beacon Falls, Bethany and Middlefield.

Some locations that will experience flash flooding include: Danbury, Southbury, Lake Carmel, Sherman, Newtown, Bethel, Brookfield, New Fairfield, Carmel, Fahnestock State Park, Patterson, Putnam Lake and Brewster Hill.

UPDATE: The National Weather Service in Norton has issued a flash flood warning for Hartford County until 6 p.m.

"At 227 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 2 inches of rain have fallen. The expected rainfall rate is 1 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly," the weather service said.

Some locations that will experience flash flooding include: Hartford, New Britain, West Hartford, Bristol, Manchester, East Hartford, Enfield, Southington, Glastonbury, Newington, Windsor, Wethersfield, South Windsor, Farmington, Simsbury, Bloomfield, Berlin, Rocky Hill, Avon and Plainville.

Original post: CONNECTICUT — Slow-moving scattered thunderstorms could bring heavy rainfall and potential flooding to the state Monday, forecasters predict.

According to WFSB, there will be scattered thunderstorms developing Monday afternoon, particularly in the western portion of Connecticut, as a cold front approaches from the west.

Flooding concerns, heavy rain expected Monday

The station indicates the storms will be slow moving, and therefore have the potential to produce between two and four inches of precipitation, which could mean flooding.

A flood watch is in effect from noon to midnight for Hartford, northern New Haven, Litchfield, and Fairfield counties.

WFSB reports that the strongest storm potential is after 3 p.m. There is also a potential for strong winds with the storms.

WFSB is calling Monday a First Alert Weather Day due to the storm potential. The storms will weaken to showers later Monday night.

Tuesday is looking mostly cloudy, with the potential again for showers and storms in the afternoon, according to WFSB. The station predicts a heat wave will begin, with highs reaching around 90 degrees.

Another heat wave for us

WFSB is declaring Tuesday through Friday as First Alert Weather Days also, as it predicts heat index values will be in the 95 to 100 degree range.

"The heat risk will be moderate on Tuesday, then major on Wednesday, Thursday, and Friday. Isolated storms are possible on Thursday, becoming scattered on Friday connected with a cold front. The timing of this front will determine the intensity of the associated storms, but some of them could be strong to severe," said WFSB 3 TV meteorologists. (Read more at WFSB 3 TV).

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Here are the forecast details for southern Connecticut via the National Weather Service, as of Monday morning:

Today: A slight chance of showers and thunderstorms before 11 a.m., then a chance of showers and thunderstorms after 2 p.m. Mostly cloudy, with a high near 84. South wind 5 to 7 mph. Chance of precipitation is 40%.

Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2 a.m. Cloudy, with a low around 72. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday: Showers likely and possibly a thunderstorm before 8 a.m., then a chance of showers and thunderstorms, mainly between 8 a.m. and 2 p.m. Cloudy, then gradually becoming mostly sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday Night: A slight chance of showers before 8 p.m., then a slight chance of showers and thunderstorms after 2 a.m. Partly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

Wednesday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the morning.

Wednesday Night: A 30 percent chance of showers before 2 a.m. Mostly cloudy, with a low around 74.

Thursday: A 40 percent chance of showers and thunderstorms after 2 p.m. Partly sunny, with a high near 90.

Thursday Night: A 30 percent chance of showers and thunderstorms before 8 p.m. Partly cloudy, with a low around 74.

Friday: A 40 percent chance of showers and thunderstorms after 2 p.m. Mostly sunny, with a high near 90.

Here are the forecast details for northern Connecticut via the National Weather Service, as of Monday morning:

Today: Showers and thunderstorms likely, mainly after 5 p.m. Mostly cloudy, with a high near 85. South wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms likely before 1 a.m., then a slight chance of showers and thunderstorms after 2 a.m. Patchy fog after 10 p.m. Otherwise, mostly cloudy, with a low around 70. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday: A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 2 p.m., then a slight chance of showers and thunderstorms after 2 p.m. Partly sunny, with a high near 89. Heat index values as high as 96. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night: A slight chance of showers and thunderstorms before 8 p.m., then a slight chance of showers between 8 p.m. and 9 p.m. Partly cloudy, with a low around 71. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

Wednesday: A chance of showers, mainly after 5 p.m. Partly sunny and hot, with a high near 91. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.

Wednesday Night: A slight chance of showers and thunderstorms, mainly between 2 a.m. and 3 a.m. Mostly cloudy, with a low around 73. South wind 5 to 7 mph. Chance of precipitation is 20%.

Thursday: A chance of showers and thunderstorms after 10 a.m. Partly sunny and hot, with a high near 91. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.

Thursday Night: A chance of showers before 11 p.m. Mostly cloudy, with a low around 73. South wind 5 to 7 mph. Chance of precipitation is 40%.

Friday: A chance of showers between 1 p.m. and 2 p.m., then a chance of showers and thunderstorms after 2 p.m. Mostly sunny and hot, with a high near 91. West wind 3 to 7 mph. Chance of precipitation is 40%.

Friday Night: A chance of showers and thunderstorms before 8 p.m., then a chance of showers between 8 p.m. and 11 p.m. Partly cloudy, with a low around 69. North wind around 6 mph. Chance of precipitation is 40%.