A river of fast air circles the planet near the top of the troposphere, bending north and south as it goes. Its changing route helps determine whether a region receives a procession of storms, a surge ...

If you’ve ever heard a meteorologist mention the jet stream and thought, “Okay… but what does that actually mean?” You’re not alone. It’s one of the most important drivers of weather across the United ...

Meteorologist Justin Rudicel explains how the jet stream forms, why it shifts throughout the year and how it influences everything from severe storms to summer heat in Oklahoma. The jet stream is one ...

Meteorologist Melinda Singh explains how the current El Niño event is influencing the jet stream and polar vortex, impacting weather patterns and the outlook for the upcoming ski season in Western ...

Scientists have undertaken computer simulations of jet stream behavior and have concluded that ranges of forecasts by the middle of the century (up to thirty years from today) will be very similar to ...

Learn how the polar vortex and sudden stratospheric warming can influence UK cold spells, snow chances, and forecasts—and what to check before making plans.

Storm Bóelo swept across parts of the UK with powerful winds, heavy rain and transport disruption. The storm's development ...