ROTATING storm system characterized by a low-pressure center with a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain or squalls."Tropical" refers to the geographical origin of these systems, which form almost exclusively over tropical seas. "Cyclone" refers to their winds moving in a circle. The whirling ROUND their central clear eye, with their winds blowing counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. Tropical cyclones, move from east to west.A tropical cyclone has an effect on a comparatively smaller area than a Temperate cycloneThe velocity of wind in a tropical cyclone is much higher and it is more damagingTropical cyclones form only on seas with TEMPERATURES more than 26-27degree C and dissipate on reaching the land.A tropical cyclone doesn’t last for more than 7 daysDepending on its location and strength, a tropical cyclone is referred to by different namesAreaRegional Name of Tropical CycloneAtlantic and eastern PacificHurricaneAustraliaWilly WillysChina and East AsiaTyphoonJapan TaifuSouth AsiaCyclonePhilippinesBaguioUSATornadoFavourable condition for Cyclogenesis:Sufficiently warm sea surface temperatures, higher than 27° CAtmospheric instability,High humidity in the lower to middle levels of the troposphereEnough Coriolis force to develop a low-pressure centerA preexisting low-level focus or disturbanceLow vertical wind shear.Therefore, Both Statement I and Statement II are correct.