The North American monsoon brings much-needed rainfall across the Desert Southwest this week amid a relatively late start to the monsoonal season in many locations across the region.
This annual phenomenon is the change in wind direction from the prevalent westerly breezes most of the year to more of a south to southeast direction during the summer months. This flow of air brings moisture up from both the Gulf of Mexico and the Gulf of California.
Over an inch of rain fell during one hour on Tuesday afternoon at Zion National Park in southwestern Utah.
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