Southwestern United States — geographical region of the USA

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Friday, October 30, 2026

Southwestern United States

geographical region of the USA

In brief

A prolonged heat wave across the U.S. Southwest driven by record-warm overnight temperatures continues, triggering extreme heat warnings from Death Valley to the Las Vegas area and along the Lower Colorado River Valley. The heat extends into New Mexico and North Texas with highs in the 90s to 100s, accompanied by intermittent storms and a forecast of hot conditions persisting into mid-to-late next week.

A rare and mysterious migration is now underway across parts of the American Southwest — and it’s happening right underfoot. Every year from late summer into fall, thousands of male tarantulas leave their burrows and…

Genevieve in the eastern Pacific is expected to rapidly intensify into a major hurricane, potentially reaching Category 3 with winds around 125 mph, while remaining largely at sea though swells could affect Mexico’s coast and California with dangerous surf and rip currents. Nearby, Fausto remains a Category 2 hurricane, and forecasters note rapid intensification is more likely in a warming ocean, with potential broader impacts such as a later heat wave in the U.S. Southwest and western states.

LatestCategory 3 Hurricane Polo nears Baja California landfall MondayCategory 3 Hurricane Polo packs 125 mph winds as it nears Baja California landfall Monday under hurricane warning.Sep 28, 2026