On Thursday at 2:13 p.m. the National Weather Service issued an updated frost advisory valid for Friday between 2 a.m. and 9 a.m. for Monmouth, Mercer, Salem, Gloucester, Camden, Burlington, Ocean, Cumberland and Atlantic counties.

FREEZE WARNING 1 a.m. until 9 a.m. Friday except for central Cook County and areas surrounding downtown Chicago. Becoming mainly clear, diminishing winds, cold. Winds: Northwest 5-10 mph. Lows range from the middle 20s coldest inland locations to the upper 30s near Lake Michigan.

"Frost and freeze alerts are posted for over 50 million Americans, who could see frosty conditions on Friday morning," said FOX Weather Meteorologist Dylan DeBruyn.

Freeze warnings and frost advisories are anticipated to expire by 10 a.m. Wednesday as temperatures climb after sunrise. The NWS encourages residents to continue monitoring weather statements for updates and to be proactive by insulating pipes, covering sensitive plants and preparing for sudden weather changes.

Frost advisories are up for Friday morning for areas just outside Philadelphia on both sides of the Delaware River as the region is about to experience its chilliest spell in more than six months. While the urban hotplate areas of Philly and Delaware County were not included in the National Weather Service advisory zones,

Thurday and Friday are going to be chilly days with lows dipping into the 30s and freeze warning and a frost advisory in place in Greater Cincinnati and Northern Kentucky. It's time to bring in your tender plants,

On Thursday at 9:38 a.m. the NWS Blacksburg VA released an updated frost advisory valid for Friday between 2 a.m. and 9 a.m. The advisory is for Surry, Wilkes and Yadkin counties.

From protecting tender plants to saving the last harvests, here are garden tasks to remember before the first frost.