Severe weather involving flooding, high winds, and tornado watches affected the U.S. Southwest on Wednesday, October 21, and Thursday, October 22, 2026. Evacuation orders were issued for parts of southwestern Utah as flash floods entered residential neighborhoods and roadways.
The weather event followed a series of storm alerts unusual for the region. The FOX Forecast Center reported that a Tornado Watch was issued for Arizona on Wednesday for the first time in 16 years, followed by a Tornado Watch for New Mexico on Thursday, the first such alert in that state in 28 years.
In Hurricane, Utah, floodwaters impacted the community on Thursday. Local officials ordered residents near Gould Wash and the WillowWind RV Park to evacuate as a flood wave moved through the area. In Arizona, a tornado-warned storm passed through Overgaard on Wednesday evening, resulting in minor injuries and displacing residents due to property damage. The Navajo County Sheriff's Office reported significant damage in that area.
Additional impacts were recorded across the region throughout the two-day period. Flagstaff, Arizona, recorded a wind gust of 72 mph on Wednesday, while the Moenkopi Wash near Tuba City reached a record height of over 32 feet, surpassing its previous mark by nearly 3 feet. In Clifton, Arizona, floodwaters sent mud and water through the town, causing damage to infrastructure.
The scale of the flooding is reflected in water levels such as the 32-foot rise at Moenkopi Wash, which can strain local drainage systems. In Arizona, the 60 to 72 mph wind gusts and hail damage reported in Mesa and Flagstaff may lead to insurance claims for roof and vehicle repairs. For many residents in these desert regions, where tornado watches have not been seen in nearly two decades, the sudden requirement to monitor for severe thunderstorms represents a shift in typical seasonal safety routines.
Beyond the immediate damage to homes and vehicles, the flooding has potential knock-on effects for local infrastructure, as mud and debris in towns like Clifton require cleanup. State and local officials, including Utah Governor Spencer J. Cox, have indicated that they are monitoring the situation. The threat of additional rain and severe weather was forecast to continue through Friday, October 23, 2026, keeping residents in the Four Corners region under alert for further flash flooding.