Philadelphia has opened 20 new warming centers for people who need them during the city's Code Blue emergency. While the snow has moved out, bitterly cold temperatures and biting winds have moved in.

While the snow has moved out, bitterly cold temperatures and biting winds have moved in. Philadelphia has opened 20 new warming centers for people who need them during the city's Code Blue emergency.

Monmouth County is calling a “Code Blue” alert as temperatures drop throughout the area. As of Tuesday morning, the alert is set to last until Thursday at 9 a.m. “Code Blue” is put in place when temperatures drop below freezing (32 F) and conditions pose a threat to unsheltered individuals.

Philadelphia city officials are providing more details into its the Code Blue Warming Center initiative which provides 20 warming centers open across the city—including one in every neighborhood and council district.