The Razor HD line from Vortex Optics are some of the best low-power variable optics (LPVOs) on the market. But in January 2020, Vortex announced the third generation of the ...

The Viper red dot and mount are made from a single piece of 6061 aluminum and fits directly onto the receiver of most ...

The coldest burst of Arctic air this season is coming to put an icy exclamation point on America’s winter of repeated polar vortex invasions, meteorologists warn. And it will stay frozen there ...

The system, known as a polar vortex, is forecast to bring subzero temperatures to the Midwest, Mid-Atlantic and deep into the South. And it looks as if we may get more arctic blasts in the coming ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

And if the polar vortex is to blame. First, a quick refresher on the polar vortex. The polar vortex is a region of very strong winds that form a circle around the North Pole. The vortex is located ...

Above: A Von Karman vortex street downwind of the Canary Island chain in the eastern Atlantic Ocean off the coast of Africa on Feb. 27, 2015. Image credit: NASA Worldview. Editor's note ...

Keim says this blast of cold air likely came from the Arctic as part of the “polar vortex.” The “polar vortex” is an area of cold air and low pressure that always exists around the Earth ...

A polar vortex will plunge the GTA into a deep freeze until Wednesday, Environment Canada says. "Be prepared for very cold conditions. Temperatures may be colder than those that have been seen the ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is ...

The snow-covered Peace Monument outside the Capitol on Feb. 12. (Jacquelyn Martin/AP) ...