But what are EF5 tornadoes, and are they different from their F5 counterparts? Here are all the available details regarding the nomenclature of the chaotic natural phenomena. Simply put ...

Grazulis believes Worcester was probably an F5, although it is officially ranked as an F4 by SPC. In the early 1970s, Grazulis collected early tornado footage to create the world’s first ...

from F0 or EF0 for the lowest-strength tornado to F5 or EF5, which are considered the strongest. Here’s a look back at some of the most devastating tornadoes by county: The most damaging tornado ...

but not all supercells produce tornadoes. Damage from the 1999 F5 tornado that struck Moore, Oklahoma. Photo courtesy NOAA. Dr. T. Theodore Fujita developed the Fujita Tornado Damage Scale (F ...

one tornado north of Moscow in 1984 may have been an F5—the most destructive type of funnel—and southeastern China is regularly pounded by typhoons that likely trigger tornadoes. Perhaps it's ...

Violent tornadoes — those rated F4/EF4 and F5/EF5 — are much rarer. Only 89 such tornadoes were reported during the same time period, accounting for 0.9% of all tornadoes. In fact, only six ...