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National Weather Service Forecast Office
Tucson, Arizona
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Cyclone: Hurricane Hilary
Date it affected AZ: August 27-28, 1993
Affected Arizona as...: Remnants (dissipated over northern Gulf of California)
 
Although Hilary weakened from a hurricane to a tropical depression before arriving in the Gulf of California, the warm waters kept her alive long enough for the moisture to stream into southern Arizona. The worst flash flooding in southeast Arizona held off until the day after Hilary dissipated, when skies partially cleared and the tropical airmass destabilized. Rainfall totals included 3.75 inches in Green Valley and 3.50 inches at Organ Pipe. Flash flooding was reported in several locations, including a reported wall of water rolling through Tanque Verde Falls northeast of Tucson. Luckily, no deaths were reported, although numerous roads were inundated eastern and western Pima County.
 
Image of Hurricane Hilary track. Close up image of Hurricane Hilary track