The monsoon doesn't mean we're going to get rain every day, said Erinanne Saffell, Arizona's state climatologist.

After a dry winter and spring, there's a lot of dust waiting for the first monsoon wind storm, a phenomenon known as a haboob ...

But, the monsoon as we know it is changing ... it suppresses the atmospheric instability and it makes storms harder to form,” Castro says. That’s exactly what happened last year.

Once the moisture has moved into the Southwest, the position of the center of the monsoon high determines where thunderstorms will occur, and whether they will organize and form stronger, ...