Tornado crossword

1. very great; intense
3. A system of winds rotating inwards to an area of low barometric pressure
6. Tornado and ________ are different names for the same type of storm—a violently rotating column of air over land associated with a severe thunderstorm
7. a tornado that contains several vortices revolving around the main vortex
12. a specific type of short-lived, low-level rotating cloud that can form in a severe thunderstorm
13. a national network of volunteer severe weather spotters
14. convective outlooks for organized severe thunderstorms
16. Winding around a fixed point or center while gradually receding from or approaching it
17. a thunderstorm characterized by the presence of a mesocyclone
18. thin tube reaching from the cloud to the ground
19. a mature tropical cyclone
20. any source of potential damage or harm

2. the act of moving people from a dangerous place to somewhere safe
4. similar to waterspouts except they occur over the land surface
5. causing or able to cause death
8. one of the deadliest tornado outbreaks in recorded history
9. a column of air moving rapidly around in a cylindrical or funnel shape
10. The study of weather patterns, and forecast weather and possible extreme weather
11. Tornadoes that form over water or move to land from water
15. a wind that is strong enough to cause at least light damage to trees and buildings