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.
While downpours could come calling at the start and finish of the July Fourth weekend in the northeastern United States, the vast majority of the time will be dry.
Rain and thunderstorms will threaten parades, barbecues and fireworks displays across portions of the central and eastern United States and the Intermountain West on Independence Day.
Research shows that cooking meat on the grill can put you at a higher risk for cancers, including colorectal, breast, stomach and pancreatic cancers.
Millions of Americans will be disappointed as the recent dry weather and high risk for wildfires across the western United States has put firework bans into effect.
With more people entering the aquatic home of one of nature's oldest predators, shark attacks continue to climb each year. Here are some tips on how to avoid an attack.
The recent unsettled weather across the United Kingdom will continue this weekend impacting several outdoor events.
Douglas, WI (1876)
An ice field with an area of 25 square miles was still at the head of Lake Superior.
North Dakota & Minnesota (1975)
(1st-4th) Heavy rains in eastern ND and north- western MN caused disastrous flooding of the Red River. The river crested 16 feet above flood stage at Fargo. Worst flooding in ND history to date caused $1 billion property damage and washed out bridges. "Much of the farmland is one big ocean with white caps on farm fields under 2-3 feet of water."
Stampede Pass, WA (1979)
A total of 5.8 inches of snow at 3,800 feet. (5.8 inches is a new record snowfall for July; the old record was 5.4 inches.)