The flash flooding has already resulted in fatalities in New Mexico, highlighting the severe risks posed by the ongoing weather system. Nearly 8 million people across New Mexico, Arizona, Utah, and Colorado are under a flash flood watch. Urban areas like Phoenix and Tucson have experienced significant flooding, with roads submerged and vehicles stranded. In New Mexico, wildfire-scarred regions such as the Sacramento Mountains are particularly vulnerable to flash flooding and debris flows, which can cause extensive damage. Hikers in areas like the Grand Canyon and Zion National Park are also at risk due to the potential for sudden, fast-moving floodwaters in normally dry areas.