Hazardous Weather Outlook Issued For Southern CT: Here Are The New Details

SOUTHERN CONNECTICUT — The National Weather Service has issued a hazardous weather outlook for Fairfield, New Haven and Middlesex counties. An air quality alert has also been issued for coastal sections of southern Connecticut on Wednesday.

"A marginal severe thunderstorm threat is possible from Thursday afternoon into Friday with the approach of a frontal system," the weather service said in its hazardous weather outlook. "Rainfall of 1/2 to 1 inch with locally higher amounts of 1 to 2 inches may be possible. The strongest thunderstorms during this time may also be capable of producing damaging wind gusts."

Air quality alert issued for coastal sections of Fairfield, New Haven, Middlesex and New London counties

The air quality alert is in effect from 11 a.m. until 11 p.m. Wednesday. "An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards," according to the weather service.

Forecast updates via WFSB 3 TV Meteorologists

WFSB 3 TV meteorologists said that on Thursday there will be a "chance for isolated storms during the afternoon/evening. This kicks off our next round of unsettled weather."

"Shower and storm chances will continue into Friday, more scattered in nature," WFSB 3 TV said. "With tropical levels of humidity and enough instability, the rain could be locally heavy. While we are not anticipating totals to the magnitude we experienced Monday, an additional 1-2″ of rain could renew the concern for isolated flooding with the already saturated ground."

And there may be more storms on Saturday and Sunday, especially on Sunday, though neither day appears to be a washout, forecasters said. (Watch/read the full WFSB 3 TV weather forecast here).

Forecast details via the National Weather Service for southern Connecticut:

Wednesday: Sunny, with a high near 90. Light west wind becoming southwest 5 to 10 mph in the morning.

Wednesday Night: Partly cloudy, with a low around 71. Southwest wind around 6 mph becoming calm in the evening.

Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. South wind 5 to 10 mph.

Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 72. South wind around 11 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Friday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Friday Night: A 50 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71.

Saturday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86.

Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.