Tornados

Tornadoes . . .

Sorry, Tornadoes.

" It's true that tornadoes tend to revolve counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. However, according to research meteorologist Richard Rotunno of the U.S. National Center for Atmospheric Research in Boulder, Colo., the opposite has also occurred. There has even been the occasional appearance of both counterclockwise and clockwise rotating tornadoes under the same thunderstorm. "

English dictionaries state that the plural of tornado is tornadoes or tornados.

Sorry for the late reply. Thank you for you wonderful answer and the dictionary spellings of the plurals. Much appreciated.