Hello, world? Can I come out of hibernation yet? Folks in the central and eastern United States who've endured weeks of bitter cold and snow are wondering: Is winter over? Will the polar vortex come ...

Could early February's blast of cold in the northeastern United States be one of the last appearances of our wintertime foe, the polar vortex? While forecasters can't yet say that for sure, a warmer ...

Add Yahoo as a preferred source to see more of our stories on Google. This year's relentless winter in the East is about to unleash its most savage cold outbreak yet. "A brutally cold weekend awaits ...

NEW YORK – Amid a winter of relentless Arctic conditions, the most powerful polar punch of the season is expected this week across the Northeast, with dangerous wind chill temperatures approaching 25 ...

ORLANDO, Fla. – When you hear meteorologists talk about a polar vortex breakdown, it might sound like something that only affects the Arctic or northern states. In reality, these events can have ...

Gene therapy holds the promise of preventing and curing disease by manipulating gene expression within a patient's cells. However, to be effective, the new gene must make it into a cell's nucleus. The ...

It’s an understatement to say it’s been a very cold winter. And it’s not close to being over. Reviewing our longer-term weather patterns, we are likely in for more freezing days ahead. You can thank a ...

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A displaced polar vortex is expected to bring dangerously cold temperatures to much of the U.S. The arctic blast is driven by a weakened polar vortex, which allows frigid air to move south from the ...

There is a major weather pattern change underway across the U.S. As we get into next week, the storm track looks really interesting. Major upper-air pattern changes are quite normal. Sometimes we have ...