The jet stream, or any wind, is the result of differences in surface temperature. In simple terms, warm air rises, creating low pressure, and cold air sinks, creating high pressure. Wind is the ...

The jet stream is about 14 percent slower in the fall now than in the 1990s, according to a recent study by Francis. And when it slows, it moves north-south instead of east-west, bringing more unusual ...

First, instead of moving storms quickly eastward, the sluggish jet stream stalled storm systems in place, causing prolonged downpours and flash flooding. When you purchase through links on our site, ...

The weather pattern may turn active again around Easter weekend across Indiana. We’re closely watching the jet stream as it stirs up the potential for thunderstorms—especially heading into Good Friday ...