Heat waves may not make for the flashiest weather headlines but they cause widespread, life-threatening impacts to the U.S. each year. So, what exactly is a heat wave? A heat wave is a period of ...
An unprecedented Antarctic heat wave hit in the dead of winter—what it signals for the decades ahead
In the middle of the Antarctic winter, during months of darkness when temperatures often dip below −30°C, the continent warmed dramatically. In July and August 2024, temperatures in parts of East ...
An oppressive heat wave across much of the western United States had cities and their residents sweltering through conditions this weekend that are normally more common at the height of summer. The ...
A record-breaking heat wave is causing temperatures 25 to 35 degrees above normal in Southern California. The heat wave is expected to continue through the weekend and possibly beyond, with a second ...
Editor’s note (3/21/26): Four stations (two in Arizona and two in California) recorded temperatures of 112 degrees Fahrenheit (44.4 degrees Celsius) on Friday, March 20, besting the all-time U.S.
Something unusual and with far-reaching consequences is lurking in the sea off the California coast, stretching all the way down the Baja Peninsula and more than 500 miles to the southwest. In this ...
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