Snow is better than flooding because flooding does more damage to our society. Plenty of accidents such as nuclear station shutdowns are caused by floods and other water-related disasters. Snowing, on the other hand, is only annoying since you have to go outside in the cold shoveling snow, only to find your driveway completely full of snow the next day.
Electric fields cause electric currents in the ocean. When electromagnetic fields are induced in the conducting oceans and Earth, Ionospheric and Magnetospheric electric current systems flow above the surface of the ocean and by the action of moving sea water.