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What causes meteorologists to rename a tropical depression tropical storm?
A tropical depression becomes a tropical storm when sustained winds reach or exceed 39 mph.
Did Isaac begin as a tropical storm or a tropical depression?
Isaac began as a tropical depression.
What is the speed of tropical depression?
A tropical depression has winds under 39 mph.
How long was Katrina a tropical depression?
Katrina was only a tropical depression for a few hours. Soon after forming, Tropical Depression 12 became Tropical Storm Katrina.
Does a hurricane start a tropical depression?
No, a hurricane does not start as a tropical depression. A hurricane forms from a tropical cyclone, which originates as a tropical depression. Tropical depressions are the first stage of a developing tropical system, followed by tropical storms and then hurricanes if conditions are favorable.
Is a tropical storm the same as tropical depression?
No. A tropical depression is a tropical cyclone with winds under 39 mph. A tropical storm is a tropical cyclone with winds from 39 mph to 73 mph.
How does a tropical depression differ from a tropical distubance?
A tropical depression is more organized than a tropical disturbance. It has a closed circulation and a definite center of rotation, which a disturbance lacks.
What is the name of the current tropical depression that is to become a hurricane?
There are currently no active tropical depressions. Also, tropical depressions are given numbers, not names. The next one in the Atlantic will be Tropical Depression Fourteen. There is however, a tropical disturbance labeled 95L that has a high chance of becoming a tropical depression.
When does a tropical depression become a tropical storm?
A tropical depression becomes a tropical storm when sustained winds reach 39 mph or greater.
What is the depression of a cyclone?
A tropical depression is the weakest level of tropical cylone. Such a system has a fairly organized circulation but does not produce tropical storm force winds.
At what speed does a tropical depression form?
There is no lower limit for tropical depression winds, which go up to 38 mph.
What causes tropical storms?
The precursor to Tropical Storm Lee started out in an area of disturbed weather over the Caribbean Sea. A low pressure system called a tropical wave then emerged from this and traveled into the Gulf of Mexico. There this system gradually became better organized until it was classified as Tropical Depression Thirteen. The depression then fed of the moist air over the Gulf, eventually becoming a strong tropical storm named Lee.
