Arctic blast hits NYC, NJ, CT with subzero wind chills

The Tri-State area is under an extreme cold warning this weekend as an arctic air blast brings some of the coldest wind chills of the season, meteorologists say. Temperatures will stay frigid, and wind chills are expected to drop below zero at times, prompting safety concerns for anyone outdoors. Forecasters warn that bare skin exposed to bitter wind chills could be at risk of frostbite in a short period of time, and residents should dress warmly in multiple layers, limit time outdoors and check on vulnerable neighbors and pets.