What is the polar vortex? Mississippi weekend weather forecast calls for winter storm with lows in the teens, paired with ...

We talk about the jet stream all the time when we’re telling you about the upcoming forecast. It’s one of the most important things in our sky that affects whether you see snow or sun at your home.

We can thank a ribbon of strong winds high above us for steering different kinds of weather our way. These strong winds make up the jet streams that circle the Earth. Earth has four primary ones: two ...