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Flash Flood in La Paz County, Arizona

Flash Flood September 23, 2022 · La Paz County, Arizona

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

US-95 was impassable at around mile marker 69 due to overflowing water from the washes intersecting the highway. No damages or injuries were reported.

The wider storm

An abundance of moisture (PWAT 1.5+) and moderate to high instability (MLCAPE of 1000-2000 J/KG) led to the development of terrain and diurnally induced thunderstorm activity. Thunderstorms first began to develop across portions of southwestern Arizona during the early afternoon hours and thereafter, additional storm development occurred across the higher terrain east of Phoenix. Outflow from storms, particularly across the higher terrain east of Phoenix led to the development of more storms across portions of the Phoenix metro, particularly in the area between Chandler and Queen Creek.

Began near Cibola (33.2108, -114.2899).

Source: NOAA Storm Events Database, event 1056580. Narratives are written by the National Weather Service forecast office that issued the report.

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