Thunderstorms knocked out power to nearly 12,000 residents and business owners across Connecticut on Saturday, marking the second day in a row severe weather has led to disruptions.

Eversource, the state's largest power company, reported more than 11,500 outages, while United Illuminating reported more than 400 outages as of 8 p.m.

The outages come as parts of the state face showers and severe thunderstorms that the National Weather Service warned could bring damaging winds and localized flash floods into the evening.

The agency briefly issued a tornado warning for the Hartford region and has said that northern parts of the state could see ping-pong-ball-sized and quarter-sized hail as well as gusts as strong as 60 miles per hour.

Most of the outages reported by Eversource were concentrated in the western, central and northern parts of the state. The company reported 2,637 outages in New Fairfield, 1,849 in Monroe, 877 in Oxford 763 in Brookfield, 522 in Rocky Hill, 468 in Ashford, 430 in East Hampton and 417 in Danbury.

Meanwhile, Untied Illuminating reported 136 outages in Milford, 54 in New Haven and 23 in North Haven.

Thousands of residents contended with power outages on Friday as thunderstorms drenched much of the state. According to Eversource and UI up to 6,000 customers experienced disruptions on Friday due to the weather.