waterspouts
Yes. Tornadoes formed over water are called waterspouts.
Waterspouts typically last about 10 minutes.
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Tornadoes are generally more dangerous as they are stronger than waterspouts.
Yes. Tornadoes have formed on oceans and lakes (in whic case they are called waterspouts) and come onto land.
Yes, waterspouts can capsize boats. They can also move onto land to become full-fledged tornadoes.
Waterspouts can be found anywhere, its like a dust devil in water, except water, not dust.
Waterspouts can form on small lakes, not just oceans.
No. Waterspouts, despite their name, do not move sigificant quantities of water. They will create a spray, but nothing more than that. The vast majority of waterspouts never threaten land.
yes
No.