The two most important patterns impacting us now are the Arctic Oscillation…or A-O, and the Pacific North-American Oscillation often shortened to the PNA. The technical name for these patterns ...

Toasty isn't exactly how you will describe the bone-numbing coming days. "Multiple waves of arctic air continue to gather over northern Canada with eyes for the central and eastern United States ...

An arctic blast looming across much of the U.S. will cause temperatures to plummet by 30 to 40 degrees this weekend and into next week, bringing a hazardous freeze from parts of the Midwest to the ...

The North Atlantic Oscillation (NAO), which is an air pattern in the northern Atlantic Ocean, is turning negative. A negative NAO allows arctic air to move into the northeastern U.S. and slow down ...

The reality is that, for years since the end of the Cold War, Washington has ignored the Arctic, allowing for its strategic rivals to slowly but surely gobble up larger and larger amounts of the ...

Judy and Randy Adamson pictured inside their garage full of Arctic Cat collectibles. They owned an Arctic Cat dealership in Thief River Falls for many years, and he is considered the town's local ...

Finally, if you want to geek out on weather parameters to watch during winter, look for a negative North Atlantic Oscillation, which can mean more East Coast storms. A positive Arctic Oscillation ...

And then it will get really cold as a blast of cold air from the Arctic moves into Florida. How cold? Depending on several factors, temperatures could be around the freezing mark even in South ...

More than 30 states could see subzero temps next week: Report Meteorologists: Upcoming pattern could lead to high energy bills Pacific Northwest may see unusually cold air in late January More ...