ef rating

  1. Dan Ross

    EF4+ Tornado Frequency

    First off, this thread isn't about debating the NWS's EF rating for any particular tornado event, but rather to speculate on the actual frequency of tornadoes with EF4+ wind speeds. Most chasers/enthusiasts are probably familiar with the statistic that only 1-2% of tornadoes are EF4 or greater...
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