Severe Thunderstorms, Flash Flooding Concerns Forecast For CT

The National Weather Service said a "slow moving" storm will result in "periods of heavy showers and thunderstorms" across Connecticut.

"There is potential for isolated to scattered flash flooding late tonight through Monday," according to the weather service.

Up to three inches of rain could fall in parts of Connecticut, though an average of 1 to 2 inches is more likely for most places.

The highest risk for flash flooding is in southwestern Connecticut. There is also a chance for severe thunderstorms too, including damaging wind gusts, during Sunday afternoon into Monday.

"Monday is a *First Alert Weather Day* as an approaching front combined with tropical moisture brings us once again the potential for heavy rain and storms," said WFSB 3 TV meteorologists. "Impacts to outdoor plans are likely. Also, given the recent rainfall, the ground is saturated and can’t absorb a lot more water - so we’ll be watching for a localized flooding threat. Some of the storms may also be strong or severe, and the Storm Prediction Center has us in a level 1 (out of 5) threat for severe storms. The rest of the week isn’t looking like a washout, but a lot of moisture remains in the air, leading to a shower chance each day. Tuesday and Wednesday will likely be brighter and drier with only isolated showers developing, but Thursday and Friday’s showers look more numerous." (Read more at WFSB 3 TV).

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Here are the extended forecast details for Connecticut via the National Weather Service:

Today: Mostly cloudy, with a high near 83. South wind 9 to 13 mph.

Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Patchy fog after midnight. Low around 70. Southeast wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday: Showers and possibly a thunderstorm. Patchy fog before 9am. High near 80. South wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Monday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 65. Light southwest wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday: A chance of showers after 8am. Partly sunny, with a high near 83. Light west wind. Chance of precipitation is 30%.

Tuesday Night: A chance of showers, mainly before 9pm. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%.

Wednesday: A chance of showers. Partly sunny, with a high near 83. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 40%.

Wednesday Night: A chance of showers before 3am. Mostly cloudy, with a low around 69. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Thursday: A chance of showers between 7am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Southwest wind 3 to 8 mph. Chance of precipitation is 50%.

Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and midnight. Mostly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.