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Western America’s Heatwave Rewrites History

Sun. Image by AntonMatyukha via Depositphotos.
Sun. Image by AntonMatyukha via Depositphotos.

The Western United States is no stranger to high temperatures, but the heatwave that swept through the region this past weekend was anything but ordinary. Scorching temperatures broke long-standing records across California, Arizona, and beyond, creating hazardous conditions for millions. The relentless heat showed no signs of abating as forecasts extended heat alerts into Monday, with over 50 million people bracing for more.

Wait, How Hot?

Skating at Venice Beach, California.
Skating at Venice Beach, California. Image by nito130 via Depositphotos.

On Friday, Hollywood Burbank Airport reached an all-time high of 114 degrees, matching a record that had stood for years. In downtown Los Angeles, a sweltering 111 degrees tied the area’s historical high for the date. Nearby, the coastal cities of Santa Ana (113 degrees) and Newport Beach (95 degrees) set new records, defying the cooling influence of the Pacific Ocean. Even Ramona, nestled in San Diego County, hit 114 degrees, solidifying this wave as one of the most intense on record for the region.

The National Weather Service (NWS) in Oxnard, California, recorded its own record high of 99 degrees, further illustrating the extent of the heatwave’s reach. Southern Californians, accustomed to mild coastal breezes, found themselves facing dangerous, unrelenting heat.

Arizona Melts Under Triple-Digit Streaks

Joshua tree in Arizona desert along road. Image by kamchatka via Depositphotos.
Joshua tree in Arizona desert along road. Image by kamchatka via Depositphotos.

Arizona, infamous for its brutal desert heat, wasn’t spared from the extreme conditions. In Phoenix, the morning low of 93 degrees at Sky Harbor International Airport set a new record for the warmest September day. Yuma, known for its dry, searing heat, reached 109 degrees on Friday, marking its 100th consecutive day of triple-digit temperatures this summer—a new record since data began being collected in 1878.

Death Valley, one of the hottest places on Earth, soared to a staggering 119 degrees on Friday. Though not a record for the park, it was a stark reminder of the ferocity of the desert climate, which had shown no mercy throughout the summer.

Pacific Northwest Feels the Heat

Washington DC. Image by rabbit75_dep via Depositphotos.
Washington DC. Image by rabbit75_dep via Depositphotos.

Even the typically temperate Pacific Northwest couldn’t escape the heatwave’s grip. Inland regions, including Spokane, Washington, and Coeur d’Alene, Idaho, experienced temperatures in the 90s, a rarity for this time of year. While the area has seen an increase in heatwaves in recent years, these conditions still caught residents off-guard, highlighting the growing unpredictability of climate patterns.

The National Weather Service in Spokane issued heat alerts for these inland areas, extending warnings through the weekend. With temperatures expected to remain above average, the Pacific Northwest, like much of the West, was left grappling with the health risks associated with such high temperatures.

Excessive Heat Alerts and Risks

Los Angeles, California
Los Angeles, California. Image by Dell640 via Depositphotos

The National Weather Service wasted no time in issuing heat alerts for the most affected areas. California was hit particularly hard, with excessive heat warnings covering a vast swath from Long Beach all the way to San Luis Obispo County. Additional warnings extended into San Diego, Orange, Riverside, and San Bernardino counties, where conditions were expected to improve slightly by Sunday night. Yet even as these warnings were set to expire, the threat of heat-related illnesses loomed large.

Excessive heat warnings, the most severe issued by the NWS, signaled dangerous conditions that posed a significant threat to life. In regions under such warnings, heatstroke, dehydration, and other heat-related illnesses were of particular concern, especially for the elderly, children, and outdoor workers.

Relief in Sight?

Portland skyline. Image by CCStockMedia via Depositphotos.

Forecasters initially predicted the heat would relent by Friday evening, but conditions remained so intense that heat alerts were extended across several regions. Even Oregon, which typically enjoys cooler weather, saw excessive heat warnings for the eastern half of the state. These warnings were expected to expire late Friday night, but with temperatures continuing to soar, the possibility of further extensions remained.

The NWS continues to monitor the situation closely, with the hopes that cooler air will arrive in the coming days. For now, however, residents from California to Idaho are encouraged to stay indoors, hydrate frequently, and take shelter from the sun. As temperatures push the limits of human endurance, the West waits anxiously for the return of more moderate conditions.

A Sign of the Times?

People swimming. Image by Dangubic via Depositphotos.
People swimming. Image by Dangubic via Depositphotos.

As the West confronts these record-breaking temperatures, one can’t help but wonder if this heatwave is just another example of an increasingly warming planet. With climate change making extreme weather events more frequent and intense, the region may need to brace for more summers like this in the future. For now, the priority is survival—keeping cool, staying safe, and hoping that relief is just around the corner.

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