The original Fujita-Pearson tornado scale has been expanded to take into account wind forces projected to occur as a result of global warming.
Scales EF0 to EF5 are the same as for F0 to F5 in the original scale (previous section).
Wind Speed
in miles per hour
F Scale Number
Intensity Phrase
319 - 379
EF6
mind boggling
380 - 460.5
EF7
unthinkably staggering
460.6 - 525
EF8
unimaginably stupendous
where:
• The intensity phrases seem a bit bizarre.
• The original F scale topped off with an F6 wind speed at >= 319 mph, and was termed inconceivable.
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Specialty: Emergency Medicine, Critical Care
