The severe weather poses significant risks, including damaging winds, large hail, and isolated tornadoes, particularly in eastern and southeastern Arizona. Flash flooding has already been reported in some areas, with a Flood Watch in effect for the Valley through Thursday afternoon and for the high country and eastern Arizona through Thursday evening. Rainfall totals could reach up to 1 inch in the Valley, with 1 to 2 inches in the foothills north and east of Phoenix, and 1 to 3 inches in the high country. These conditions may lead to hazardous travel, property damage, and localized flooding.