The tool will categorize dust storms based on dust concentration, but will also measure wind speed and area covered.

Isolated showers and weak thunderstorms were possible over the next few days across parts of metro Phoenix, according to the National Weather Service, with gusty winds and temperatures near daily ...

The scale would rate a storm based on the amount of dust in the air, as well as other components, researchers say.

Add Yahoo as a preferred source to see more of our stories on Google. A mini dust storm kicked off in Phoenix, Arizona, when an Amazon delivery drone dropped a package off on Friday, April 24. Brian ...