Chilly air is on the move and will deliver some of the lowest temperatures of the season so far to the New York metropolitan area by the weekend.
The second and stronger of two cold fronts will reach the Atlantic coast during the day Friday.
In its wake follows an area of high pressure that had its origins over the Alaska North Slope.
Under clear skies, in dry air and diminishing wind, temperatures will stop above 40 degrees in most urban areas Friday night into Saturday morning. However, lows in the 30s are likely in many suburban locations.
Temperatures will dip low enough to allow the formation of frost in the coldest locations outside of the city. This not only includes portions of northern and central New Jersey, the lower Hudson Valley and Connecticut, but also central Long Island.
If you have pepper or tomato plants still bearing fruit, you may want to harvest these items or risk losing them. Annual flowers should be covered or brought indoors if they are potted.
Rooftop or ground-level neighborhood gardens in urban areas should survive without damage during this event as warmth given off from buildings and pavement should keep temperatures higher.
Remember that official temperatures are measured at a height of approximately 6 feet above the ground. Temperatures nearest the ground in grassy, open areas of the countryside can be much lower, hence the danger of a killing frost or freeze in this event.
After a bright, crisp autumn day Saturday, temperatures will rebound to well-above seasonable levels Sunday through much of next week.
As the region turns chilly to start the weekend, violent weather is forecast to erupt over the Central States.
A storm will bring snow and ice that will lead to slippery travel along a 1,500-mile swath from northern Arkansas and Georgia to Maine early next week.
The next windstorm to target Europe will narrowly miss the United Kingdom on Saturday before a cold snap settles in for Valentine’s Day and Monday.
A blast of arctic air will be accompanied by flurries and even a localized wall of snow in some communities in the Northeast and parts of the Midwest at the start of the Valentine's Day weekend.
Spring of 2016 could rank in the top 10 warmest on record for Canada.
The coldest air of the winter will plunge southward across much of the eastern United States and will feature single-digit and sub-zero temperatures in the Northeast during Valentine's Day weekend.
Passengers on the latest voyage of Royal Caribbean's Anthem of the Seas faced the complete opposite of a care-free, relaxing experience after an encounter with a ferocious storm in the Atlantic.
Philadelphia, PA (1899)
(11th-14th) 18.9" of snow; fourth biggest snowstorm on record. Unofficially, 44" between Philadelphia and Atlantic City. Blizzard conditions and high winds and bitter cold.
Raleigh, NC (1899)
(11th-13th) 17.7" of snow.
Richmond, VA (1899)
(11th-13th) 16.3" of snow, fourth biggest snowfall on record.