But on occasion it can cause the vortex to split entirely in two. That, meteorologists warn, could lead to a cold spell that lasts weeks. “The polar vortex has been particularly strong and ...

“When the Polar Vortex is disrupted - whether stretched, displaced, or split - it can, but does not always, impact this polar jet stream. The timing is uncertain for North America but could see ...

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.

Our WeatherWealth newsletter pinpoints answers to these questions and suggests strategies deploying futures, options and ETFs. Mr. Roemer owns Best Weather Inc., offering weather-related blogs ...

An April cold snap is expected to bring unusually cold temperatures to the eastern half of the US next week. The cold snap could impact new spring vegetation and lead to frost in some areas.

"The large polar vortex disruption from the second week of March is playing a key role in next week’s eastern US cold snap," meteorologist Judah Cohen of Atmospheric and Environmental Research told ...

BISMARCK, N.D. (AP) — Harsh cold descended on the nation’s midsection Monday as a polar vortex gripped the Rockies and Northern Plains on the heels of weekend storms that pummeled the ...