- The powerful winter storm that battered a large swath of the eastern half of the US has left behind an Arctic chill Saturday morning. A regional power grid with 65 million customers in 13 states and the District of Columbia has declared a rare emergency, over a million people have no power, air travel remains disrupted, and reports of highway accidents are some of the most trending topics this morning. Let's begin with PJM Interconnection, a regional power grid that stretches from Illinois to New Jersey, which declared a Stage 2 emergency late Friday and asked customers to conserve electricity due to the rising risk of grid instability.