### [2010-10-5](/feed/2010/10/5/index.md)

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# A major hailstorm and significant tornado outbreak struck primarily the US state of Arizona, causing $4.9 billion in damages. 




### Sources:

1. [NWS Flagstaff](https://www.weather.gov/fgz/TornadoesOct2010)
2. [NWS Phoenix](https://www.weather.gov/psr/Oct52010)
3. [Storm Prediction Center](https://www.spc.noaa.gov/exper/archive/event.php?date=20101005)