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Record-Shattering Heatwave Scorches Southwest, Prompts Widespread Alerts
The American Southwest is currently grappling with an unprecedented winter heatwave, pushing temperatures to historic highs and triggering widespread heat alerts for over 41 million people. This blistering spell is expected to persist through the first half of next week, according to CBS News meteorologist Nikki Nolan.
On Wednesday, a small Southern California desert community, North Shore, experienced a scorching 108 degrees, tying the highest March temperature ever recorded in the U.S. This record was previously set by Rio Grande City, Texas, in 1954. The ongoing heatwave is predicted to generate hundreds of additional record temperatures before conditions begin to ease.
Adding to the remarkable conditions, Thermal, California, a fittingly named location, is forecast to reach a staggering 110 degrees on Friday.
Phoenix, Arizona’s capital, also witnessed an early arrival of triple-digit temperatures on Wednesday, hitting 102 degrees. This marks the earliest recorded instance of Phoenix reaching 100 degrees or more in March, surpassing the previous record from March 26, 1988, which was the only other time the city saw such high temperatures during the month.
Bryan Lewis, a meteorologist with the National Weather Service, described the current conditions as one of the most significant March heatwaves in recorded history. “We’ve broken so many records yesterday and even today we’ve broken quite a few so far,” he stated.
Other major cities in the region also saw records tumble:
- Las Vegas reached 99 degrees on Wednesday, shattering its previous hottest March day record of 93 degrees set in 2022.
- Downtown Los Angeles hit 94 degrees, surpassing its earlier daily high of 87 degrees from 1997.
- Palm Springs, California, a popular desert destination, reached 104 degrees, tying its hottest March day on record from 1966.
Temperatures across the Southwest are projected to remain 20 to 30 degrees above normal March averages for the remainder of the week, with a slight dip anticipated over the weekend. The National Weather Service anticipates many other cities in the region will experience their earliest 100-plus degree days on record.