In the United States, our weather patterns usually travel from the west to the east. Sometimes, we can see variations in that a system will move in from the northwest or southwest, but Missourians ...

The storm door stays closed for now, as forecast models show California staying warm and dry for a considerable amount of ...

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 ...

TUCSON, Ariz. (KVOA) - A new study from the University of Arizona reveals how historical tree-ring data can help predict extreme summer weather events. Researchers, led by Ellie Broadman, analyzed ...

Boulder County is setting record-high temperatures and lagging behind its typical snowfall totals so far this winter, a trend ...

First, instead of moving storms quickly eastward, the sluggish jet stream stalled storm systems in place, causing prolonged downpours and flash flooding.

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 ...

Weather patterns like heat waves or dry spells can sometimes stall over one region. A new University of Arizona study found clues about why. The researchers analyzed tree rings from centuries-old ...