A synonym for waterspout would be tornado.
whirlwind
cyclone, tornado, monsoon
A common synonym for a tornado is "twister".
A synonym would be condensation funnel or tornado.
A synonym for funnel cloud is condensation funnel. Tornado may also be considered a synonym, though this is a bit loose as not all funnel clouds become tornadoes, and some tornadoes do not have a visible funnel.
A tornado is considered a tornado when it reaches the ground
No, a haboob is not a tornado.
A tornado becomes a tornado when the circulation reaches the ground.
A tornado watch is a watch that is watching out for tornadoes. A tornado warning is a warning That lets you know that a tornado is spotted.
tornado in Portuguese is tornado too
A tornado alarm or tornado siren is a loud siren found in some tornado prone areas that sounds when a tornado warning is issued.