The best replacement for tornadoes is cyclones.

The best alternatives to tornadoes are rated as following:
★★★★★  cyclones
★★★★  hurricanes
★★★★  earthquakes
★★★  tornados
★★  tornados spelling
★★  twisters
★★  hurricanes which is worse
★★  tornadoes
★  waterspouts
★  hurricanes which is more dangerous
★  trains
★  or volcanoes
★  hurricane
  hurricanes called twisters
  straight line winds
  earthquakes more dangerous
  thunderstorms

Your alternative for tornadoes is not listed? Suggest!
Speaking about tornadoes, one probably shouldn't forget about hurricanes.

Other search terms related to tornadoes and their ratings are:
★★★★★ hurricanes
★ thunderstorms
You have in mind a companion for tornadoes and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of tornadoes in all years. Click on graph for more.
tornadoes
cyclones
hurricanes