Another round of strong monsoon storms moved into the Phoenix area Wednesday evening, and the National Weather Service has issued significant weather advisories for Maricopa County. 

Dime-size hail, wind gusts up to 50 miles per hour and strong thunderstorms will be possible from Peoria to near Fountain Hills and over to Four Peaks, the Weather Service said. 

A flash-flood warning is in effect for Fountain Hills, Cave Creek and Carefree until 9:15 p.m., the Weather Service said.

In addition, a dust-storm warning is in effect for much of the Valley and a separate severe-thunderstorm warning is in place for areas of the southeast Valley.

Storms that developed in Yavapai County to the north, Gila County to the east and Pinal County to the south appeared to be converging over the Phoenix metro area. 

As of 7:30 p.m., the heaviest rain had fallen in north Scottsdale and Fountain Hills and surrounding areas, with more than an inch of rain recorded near the McDowell Mountain Regional Park area, the Maricopa County Flood Control District showed on its website

Strong thunderstorms were moving into the region from the north and northeast, and a severe-thunderstorm warning was issued for Apache Junction, Queen Creek and Higley, the Weather Service said.

A dust-storm warning is also in effect until 8:45 p.m. along Interstate 10 and Interstate 17 for much of the Phoenix metro area and south of Phoenix, the Weather Service said. 

The area along Interstate 17 near Anthem and New River was among areas that could see an immediate impact from a storm moving in from Yavapai County.

In addition, a strong thunderstorm with winds in excess of 40 miles per hour was reported over Roosevelt Dam moving southwest just past 6 p.m. Wednesday, the Weather Service said in the advisory, which also included Gila County.

The system also was impacting Roosevelt Dam, Four Peaks, Apache Lake and Tonto National Monument, the Weather Service said. The storm was moving toward the Valley.

The Weather Service recommends that people on or near Roosevelt Lake get out of the water and move indoors or inside a vehicle because of the possibility of lightning strikes.

“Move to safe shelter now! do not be caught on the water in a thunderstorm,” the Weather Service said. 

Check back with for updates.


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