And that same day, the temperature just outside Martinez Lake, Ariz., reached 110 degrees F (43 degrees C)—the highest March temperature ever recorded in the U.S. The heat wave that is engulfing much ...

This isn't an ordinary heat wave. Many locations could set new all-time March, even April, record highs from the West Coast ...

This week’s unseasonably warm weather, which came with an Extreme Heat Warning across Southern California, has shattered records and more could be broken Friday. Let’s look at the temp tallies in our ...

An unprecedented heat wave in the West broke the record for the hottest March temperature anywhere in the United States: 108 degrees. It’s an alarming signal of how hot the planet is getting and how ...

A new U.S. national high temperature record for the month of March was just set. It reached an astonishing 110 degrees on ...

The first accurate tornado prediction in U.S. history was made on March 25, 1948, but it never would have happened if not for a tornado that happened five days earlier.

Abnormal heat on the last day of winter continues to set records in the U.S. Southwest. The Arizona desert community of ...

Straight out of the March textbook, a major storm is hammering the Midwest, followed by a blast of cold air into the ...