What happens when a funnel cloud touches a vast water body?

I have this homework and I'm supposed to describe what happens when a funnel cloud touches a water body like an ocean. What problems/disasters can that cause? Plus if one's below a funnel cloud, is it dangerous and how so? And what are the sounds it makes?What happens when a funnel cloud touches a vast water body?
Wait just to make sure a funnel cloud is a tornado right?? But if that were to happen it would cause a waterspout.What happens when a funnel cloud touches a vast water body?
Most funnel clouds make tornadoes.



I'm pretty sure from learning in school, it just begins to pick up water (if it reaches the surface of the water)and rain it down around\away from the tunnel. Picking up the water makes it more difficult for the funnel to function, it also changes the air properties of the system, basically choking it and ending it's existence sooner than it would on land.



So it restricts it, and it messes with the air properties witch are the forces for it's workings.



If it dose not come in contact with the surface than the temperature difference (water is colder) will change the air properties a that it is working with and will wear it out/cut it short.



May be a sort of crude answer but should be on the money.



Being underneath or inside a funnel cloud can be very dangerous depending on it's actual state of maturity. There is an extreme negative pressure difference mixed with very high winds. When the funnel cloud is in contact/action with the ground (tornado) there can also be lighting discharges inside.



It would sound like very high winds, some refer to the noise as a freight train. The closer it is the louder it is.