PHOENIX - Strong thunderstorms developed Sunday afternoon across southern Arizona, with winds that produced large areas of blowing dust.

The National Weather Service in Phoenix issued a dust storm warning for Southern Maricopa County and northwest Pinal County–including Casa Grande, Florence and Coolidge. It ended at 8 p.m. Sunday.

After the dust storm warning ended, a blowing dust advisory remained in effect for the Phoenix Metro area, along with northwest Pinal County, until 10 p.m.

Dusty and windy conditions are also expected Monday in the Phoenix area.


Deep monsoon moisture made its push across southern Arizona, and several storms across the region turned severe with damaging wind gusts, quarter-sized hail and heavy rain.

Storms continued to develop well into the evening hours of Sunday and generally moved to the northwest. The strong winds associated with the storms picked up some blowing dust and reduced visibility to below one mile along the roadways.

An active monsoon pattern is setting up for the next several days with scattered storms possible across that area each afternoon and evening to start the workweek.

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Scattered showers and thunderstorms that developed Sunday in the High Country lasted through the evening.

Storms in northern Arizona will produce moderate rainfall and gusty outflow winds up to 50 mph. The NWS said localized areas may see heavy rainfall exceeding one inch and small hail is also possible.

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