Question: Why do monsoon storms appear for a few days in a row and then take a break?
ANSWER: Our monsoon flow, from the south and east, is the result of large and small atmospheric patterns. In the summer, a thermal low forms near Yuma and has counterclockwise flow. And a high-pressure system with a clockwise flow forms over the Four Corners region. Together they act as a conveyor of moisture from the tropics. When a low-pressure storm moves into the West from the Pacific, it briefly interrupts this flow.
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