Please note that the Museum will be closing at noon on Wednesday, September 9, 2026 for a staff appreciation event. (Art Institute classes are not affected by the closure.)

Top image: A single, strong convection cell drifts toward the Santa Catalina Mountains. A storm of this size creates violent downdraft winds and can drop two inches (50 mm) or more of rain in less than an hour. The photographer, about five miles away, remained dry that day.
Lower 2 images: More distant views of a similar storm.






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