How do Tropical Revolving Storms Develop?

They form over the sea where a disturbance (low pressure) triggers the storm in seas that are above 26.5 degrees to at least 50 meters below the surface 

Heating occurs during summer due to Northward movement of the sun and ITCZ 

Low pressure maintained and creates very strong wet winds due to plenty of evaporation due to latent heating from the sun and energy transfer

Storms move West due to NE trade winds and corolis force 

300km in diameter and can be up to 160mph at the eye

Highest winds at the eye give measurements to gain severity 

Winds much lower in the eye due to low pressure