What is a jet stream?

Aircraft traveling from North America to Europe last week, neared the speed of sound over ground at times. A jet stream made these flights truly exceptional.
Rain & isolated storms move in Wednesday before clearing out for the holiday weekend

What is a Jet Stream?

How Humans are Breaking the Jet Stream and Changing the Weather

Enhanced jet stream waviness induced by suppressed tropical Pacific convection during boreal summer

Wacky Weather, a Warmer Arctic, and a Slower Jet Stream – Is There a Link? - Union of Concerned Scientists

NASA visualisation of the European jetstream

What Is a Jet Stream?

Jet Stream Has Flattened Over the U.S. Here's What That Means - Videos from The Weather Channel

NASA SVS European Jet Stream

PPT - The jet stream PowerPoint Presentation, free download - ID:2042960