Answer:
Storms that form in the tropics are given names when a. they reach tropical storm strength .
Explanation :
Formation of storms a generally over the tropical ocean waters , and , when the storm is formed in the eastern pacific , it is called as a hurricane .
And ,
It is called as a cyclone , in the Indian Ocean .
This type of weather pattern , in the North Pacific Ocean is called a Typhoon .
Generally storm are given names in tropics when they reach tropical storm strength .