The weapons will come in two configurations: a mobile setup mounted on vehicles, and a novel stationary design.

Target’s Cyber Monday sale is officially underway, and this year’s savings are especially strong for anyone upgrading their kitchen or shopping for practical holiday gifts. Shoppers can take an extra ...

A blast of cold air is expected to bring below-normal temperatures to Tennessee around Thanksgiving. The cold air is a result of the polar vortex expanding and pushing arctic air southward. Travelers ...

The polar vortex is weakening, which means New England is in for a colder than usual December, with episodic cold snaps. Every year around this time, that phrase — “polar vortex” — starts to buzz ...

A rare weather event next week expected to spur a wave of unusually cold conditions throughout the country could make for a possibly frigid Thanksgiving for the region, forecasters said. The cold ...

In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...

December might be extra chilly across parts of the United States because of a weather phenomenon unfolding miles above the North Pole. It’s called sudden stratospheric warming and happens once every ...

Nearly all of New England has seen its share of frigid cold days and record mountain snow so far this November — and looking ahead, we’re about to get hit with another blast of Arctic air from a ...

High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

A wide swath of the western U.S. may be in for below-average temperatures as forecasts suggest an Arctic blast is looming. Reading time 3 minutes Much of the contiguous U.S. could be in for a very ...

A potential wobble in the polar vortex could bring frigid Arctic air to the northern U.S. around Thanksgiving. Forecasts show below-average temperatures for about half the country, while the Southeast ...