Hazardous Weather Outlook Issued For Middlesex/New London County

MIDDLESEX/NEW LONDON, COUNTY, CT — The National Weather Service issued a hazardous weather outlook for the region, saying "Showers and thunderstorms with torrential rainfall may cause isolated flash flooding in spots early this morning." A flood advisory is also in effect.

WFSB 3 TV meteorologists Mark Dixon with Scot Haney said, "Our first round of storms that could be strong to severe, are expected between now and 9am this morning. With warm fronts, we have to watch for rotation that could lead to brief tornadoes.

"Thereafter, we could see partial clearing and with enough sunshine, temperatures peak near/above 80 during the afternoon hours. Another round of storms will be possible this afternoon between 2 to 7pm. The warmer it gets, the greater the instability for the second round as a cold front moves into the state (conversely, if we stay cloudier, a lesser threat for storms to be strong to severe).

"Overall, the main concerns with any that develop will be damaging wind gusts, also heavy rain that could lead to poor drainage flooding. Within the region, an isolated tornado can’t be ruled out," Dixon and Haney said. (Watch the WFSB 3 TV weather forecast here).

Flood advisory until 10 a.m. for Middlesex County:

"At 651 AM EDT, Doppler radar indicated heavy rain due to thunderstorms. Overflowing poor drainage areas will cause minor flooding in the advisory area. Between 1/2 and 1 inch rain has fallen, with some locally higher amounts of 1 to 2 inches near the coastline," the weather service said.

Some locations that could experience flooding include: Colchester, Clinton, East Hampton, Old Saybrook, Durham, Salem, Chester, East Haddam, Haddam, Westbrook and Killingworth.

Flood Advisory in effect until 10:45 a.m. for New London County:

"At 748 AM EDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 1.5 and 2.5 inches of rain have fallen," the weather service said. "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: Norwich, New London, Groton, Old Saybrook, Salem, Chester, Mystic, Waterford, East Lyme, Ledyard, East Haddam, Old Lyme, Westbrook, Preston, Voluntown, Lyme, Gales Ferry, Ledyard Center, North Lyme and Montville.

Middlesex County:

Today: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms, mainly between 2pm and 5pm. Mostly cloudy, with a high near 80. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

New London County:

Today: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms, mainly between 2pm and 5pm. Mostly cloudy, with a high near 80. Light east wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.