I presume it would take a lot of water.
I tried to look up information about tornadoes crossing rivers, lakes, and reservoirs, where they naturally could suck up a lot of water, but didn't find much.
Keep in mind that a tornado is just one part of a larger storm system that includes the meeting of cool polar air, warm tropical air, warm ground beneath, and cool clouds above.
The individual cyclones can appear, travel for a bit, disappear, then reappear a little further on. So, dissipating a single cyclone without dissipating the storm system may be ineffective.