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| National
Weather Service Forecast Office |
| Tucson,
Arizona |
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| Cyclone: |
Hurricane
Joanne |
| Date
it affected AZ: |
October
6-7, 1972 |
| Affected
Arizona as...: |
Tropical
Storm (passed through western Pima County, dissipated over northern
Arizona) |
|
| |
| Even though
she weakened rapidly after making landfall near Puerto Peñasco on
October 6th, Joanne probably moved northeast into western Pima County as
a minimal tropical storm with maximum sustained winds around 40 mph. She
weakened to a depression near Ajo, but made it all the way to near Flagstaff
before dissipating. Widespread heavy rains of 1 to 3 inches fell over southeast
Arizona, with isolated mountain totals over 5 inches. The Nogales Highway
Bridge over the Santa Cruz River was washed away, as were many secondary
roads in and around Tucson. Water rescues were conducted in central Tucson
as several major streets turned into rivers. Joanne set the stage for major
river flooding later in the month (October 17-21) as a Gulf of Alaska storm
transported more tropical moisture into the state. That second flood killed
eight and did hundreds of millions of dollars in damage. |
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