A Record? 500 U.S. Tornadoes in 30 Days

The U.S. has been rocked by 500 tornadoes in the past 30 days with a trapped jet stream in the atmosphere "stuck in neutral," the U.S. Storm Prediction Center said. In the past seven decades, only ...

La Nina Appears Likely for Remaining Winter

A U.S. government weather forecaster said on Thursday that La Niña conditions are likely to persist through the Northern Hemisphere winter. La Niña is characterized by unusually cold ocean ...

La Nina Becomes More Likely as El Nino Odds Fade

The U.S. reduced the odds of a Pacific El Nino, but said the prospect of La Nina ushering in cold weather across the northern U.S. has improved. Extremes in Pacific Ocean temperatures, called La Nina ...