Urban drainage systems have increasingly incorporated vortex flow mechanisms to efficiently dissipate hydraulic energy while minimising structural damage and regulating discharge. Vortex drop shafts ...

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

CLEVELAND — The temperature outside was so cold that your fingers, toes, nose and cheeks felt like they were burning. A harsh Arctic cold wave brought record-breaking temperatures to the United States ...

Early holiday outlooks are in—and they’re compelling. The headline is a strong polar vortex core anchored over North America, influencing weather on both sides of the Atlantic and boosting the chances ...