Vortex Optics made headlines in 2022 when it was selected to provide the Next Generation Squad Weapons–Fire Control (NGSW-FC) system for the U.S. Army’s NGSW program. That has led to both securing ...

New York City got its first snow of the season on Tuesday as a powerful polar vortex swept across the eastern half of the country, bringing frigid temperatures. Highs are not expected to break out of ...

Frigid temperatures are expected to impact much of the central and eastern United States in the coming weeks. The first of three polar vortex systems is expected this month, according to AccuWeather.

The polar vortex is weakening, and pockets of cold air are expected to break off and travel south into the United States — with some Arctic air expected to encroach on New England after Thanksgiving, ...

Boston has seen just one day so far this month where the average temperature was above the seasonal norm, daring me to ask — are you over the cold yet? Astronomical winter hasn’t even arrived (that ...

Add Yahoo as a preferred source to see more of our stories on Google. This winter’s harsh run is intensifying, with some of the coldest air so far this season plunging into New Hampshire this weekend ...