There is a Code Blue alert in effect due to the below freezing temperatures combined with the bitter wind chill.

There are warming centers available for people to rely on due to the cold.

According to 211, Essex and Hudson counties have issued the longest alerts, running through Dec. 7 and Dec. 9. Other NJ counties south activated alerts through today.

Many public libraries, senior centers and shopping centers in the area can serve as warming centers during regular business hours.