The Washington Post15d
These maps show how winter has flipped upside down in the U.S.
The map below shows ... laden subtropical jet stream. The path of the polar jet was nudged southward by lobes of the polar vortex that dipped into the United States, providing ample cold air.
Hosted on MSN3d
US weather: America 'split down the middle' as 'freakish' weather swings trigger deadly ice storm and record heat
Ferocious cold gripping more than 20 states as record heat bakes the rest of the country will leave America split down the ...
Frozen frenzy: Nearly nonstop winter storms to hit the same parts of the US for days to come
Winter storms are about to blitz through the eastern half of the United States at a frenetic pace that could continue for a ...
Powerful polar vortex in the stratosphere brings frigid temperatures to US
A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.
PBS8y
About The Jet Stream
How Would You Define a Jet Stream? The jet stream, one of the most dramatic forces of nature, was discovered during World War II when aviators first tried to cross the Pacific. This strong wind ...
Irish Daily Mirror21d
Weather map shows freezing US jetstream charging towards Ireland as Met Eireann sounds alarm
Forecasters warn that the very cold air sweeping the US in recent ... weather map of its predicted path - showing it heading straight towards Ireland. A forecaster said: "A powerful Jet Stream ...