At least 1 dead, 20 possible missing after Grand Canyon flash flooding

Flood Watch

until MON 12:00 PM MST, Scottsdale/Paradise Valley, Globe/Miami, South Mountain/Ahwatukee, Northwest Pinal County, Southeast Gila County, Southeast Valley/Queen Creek, San Carlos, Central Phoenix, Rio Verde/Salt River, Apache Junction/Gold Canyon, Mazatzal Mountains, East Valley, Fountain Hills/East Mesa, Superior, North Phoenix/Glendale, Tonto Basin, New River Mesa, Pinal/Superstition Mountains, Deer Valley, Dripping Springs, Cave Creek/New River