Scattered strong thunderstorms and heavy downpours are headed for Connecticut Wednesday afternoon into early Thursday, according to the National Weather Service. As a cold front passes through the region, it'll bring potentially damaging wind gusts and large hail, with the possibility of an isolated tornado, the weather service said. Poor drainage areas, and areas near already-swollen bodies of water, can expect some flash flooding. Saturated grounds and high rivers and stream levels pose a risk of flash flooding across southwestern Connecticut. The worst of the storms is expected between 3 p.m. Wednesday and midnight, the weather service said. Prior to the rain, Wednesday will feature partly sunny skies, with a high near 86 degrees, and a light wind in the morning. By night, the threat of thunderstorms moves in, with some storms expected to produce gusty winds and heavy rain. It'll be mostly cloudy, dropping to a low around 65 degrees. Thursday brings a continued chance of showers, with thunderstorms possible in the late afternoon. It'll be mostly cloudy throughout the day, with a high around 77 degrees. It'll be mostly cloudy at night, with a low around 65 degrees, and a chance of showers and thunderstorms. A chance of showers is in the forecast for Friday morning, with thunderstorms possible in the afternoon. Skies will be mostly cloudy, with a high near 75 degrees and a light breeze. It'll be mostly cloudy Friday night, with a low around 65 degrees.