English: A map of California tornadoes from 1962 to 1983. Dots are tornado locations. Dashed line indicates tornado-prone zones. Rectangle encloses an area of frequent tornado occurrence.
Uploaded a work by John E. Hales, Jr., National Severe Storms Forecast Center from https://journals.ametsoc.org/view/journals/bams/66/6/1520-0477-66_6_657.xml?tab_body=pdf with UploadWizard
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