Flash Flood in La Paz County, Arizona

Flow in Centennial Wash caused a low water crossing along Centennial Park Road to become impassable. An RV attempted to cross the flooded roadway but was swept off the road. Images also showed damage to the roadway from the flooding. No injuries were reported.

Isolated showers and thunderstorms initially began across parts of southern Gila County, along with eastern Maricopa County and northeast Pinal County, producing locally heavy rainfall leading to isolated flash flooding. By the late afternoon and early evening hours on the 20th, new thunderstorms initiated over the high terrain of northern Arizona. High instability (MUCAPE 2,000-2,500 J/kg) aided in maintaining strong to severe thunderstorms into the Phoenix area as thunderstorms pushed toward the south and into the lower deserts during the evening. DCAPE around 1,000-1,200 J/kg promoted strong to severe downbursts with the strongest thunderstorms. Meanwhile, PWATs around 1.7-1.9 aided in thunderstorms being heavy rainfall producers, leading to several reports of flash flooding. No injuries were reported.