The southwestern U.S. is facing a high risk of deadly flash floods this weekend as Tropical Storm Priscilla's remnants bring torrential rains to Arizona, Utah, New Mexico, and Colorado, a region unaccustomed to such intense moisture.
The remnants of Tropical Storm Priscilla, though downgraded from a powerful hurricane, are set to saturate the southwestern U.S. from Arizona to Colorado this weekend, bringing a year's worth of rain in hours to some areas and raising significant flash flood risks. Northern Arizona, particularly Flagstaff and areas around the Grand Canyon, is expected to be most affected, with 2-3 inches of rain forecast. Meteorologists warn that such downpours can be deadly in desert environments with minimal drainage, canyons, and recently burned areas lacking vegetation. Flash flood watches are in effect across much of Arizona, southern Utah, and parts of California, Nevada, and Colorado. The article highlights the dangers of flooding, which killed 145 people in the U.S. in 2024, often involving vehicles. Arizona's 'stupid motorist law' allows fines for drivers needing rescue after ignoring flood warnings. Communities are preparing by positioning heavy equipment, distributing sandbags, and advising residents and tourists, like those visiting the Havasupai Tribe's reservation, to take extreme caution and seek higher ground.