Last week's marathon winter storm was the result of a big dip in the jet stream. Here's how the jet stream works, and how we ...

The shifting jet stream has magnified wildfires and plagues. What’s next? When the bubonic plague reached England in the summer of 1348 — spread by fleas, lice, or infected humans, according ...

Here's what meteorologists mean when the weather pattern is zonal versus amplified and how it ties into next week's forecast.