Severe storms knocked out power to more than 620,000 customers across multiple U.S. states, with utilities warning that repairs in the hardest-hit areas could take several days.

Severe storms knocked out power to more than 620,000 customers across multiple U.S. states, with utilities warning that repairs in the hardest-hit areas could take several days.

Over 373,000 homes and businesses lost power due to extreme weather conditions in USA. Pennsylvania experienced the most outages, with over 70,000 customers affected by the…