Phoenix, AZ – A widespread flash flood threat is developing across Arizona, with flood watches covering Phoenix, Flagstaff, Prescott, Sedona and numerous surrounding communities beginning Wednesday, October 21. Heavy thunderstorms could produce dangerous flooding through Thursday, October 22, particularly along roads, desert washes and low-lying areas.
According to the National Weather Service offices in Flagstaff and Phoenix, a strong weather system will draw deep subtropical and tropical moisture into Arizona, producing widespread showers and thunderstorms across northern, central and portions of south-central Arizona.
In northern and central Arizona, including Flagstaff, Sedona, Prescott, Payson, Show Low, Winslow and the Grand Canyon region, a Flood Watch begins early Wednesday morning and continues through Thursday evening…