Question

how are cyclones formed what we should have to do when when cyclone come

Answer 1

clusters of thunderstorm cells that are often witnessed over tropical oceans. They get their energy from the evaporation of surface water with a temperature of more than 27°C.

Tropical cyclones with wind speeds of up to 300 km/h

Tropical cyclones attaining hurricane force in the Atlantic and Northeast Pacific are referred to as hurricanes; they are called cyclones in the Indian Ocean – the sea area around Australia, and the South Pacific – and typhoons in the Northwest Pacific. Below hurricane force, i.e. in the 62–117km/h range, they are referred to as tropical storms.