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Cyclones are most often formed in the tropical areas, 5° and 20° north and south of the equator, owing to the Coriolis effect. Initially, a low pressure zone is formed in this area, which eventually forms a tropical wave of low pressure. This disturbance in the warm ocean waters, along with a light wind at the upper level, provides ideal weather condition for the formation of storms. With time, the intensity of the tropical wave may either increase or decrease. If the intensity increases, it goes on to become an organized area, characterized by heavy showers and thunderstorms. This organized area, marked by cyclonic winds blowing clockwise in northern hemisphere and anti-clockwise in Southern Hemisphere, is referred to as tropical depression. Equatorial areas, 5° north and south of the equator, do not facilitate formation of storms due to the lack of rotary motion of wind in this area.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoA tropical depression becomes a tropical storm by gaining energy from warm ocean water. As this happens the winds increase. When they reach 39 mph the depression becomes a tropical storm.
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Did Isaac begin as a tropical storm or a tropical depression?
Isaac began as a tropical depression.
When does a depression become a tropical storm?
When sustained winds reach at least 39 mph.
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.
Does a tropical storm have stronger winds than a tropical depression.?
Yes. A tropical storm has sustained winds of 39-73 mph. A tropical depression has winds of less than 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.
When does a tropical depression become a tropical storm?
A tropical depression becomes a tropical storm when sustained winds reach 39 mph or greater.
Why PAGASA issue public storm warning signal for tropical depression when a depression is not a storm?
A tropical depression is not a tropical storm, but can easily develop into one. Additionally, a tropical depression can still be hazardous, as the heavy rains can lead to flooding.
Did Isaac begin as a tropical storm or a tropical depression?
Isaac began as a tropical depression.
When does a depression become a tropical storm?
When sustained winds reach at least 39 mph.
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.
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 storm become a tropical depression?
A tropical storm becomes a tropical depression if it weakens to the point that it produces winds of less than 39 mph. This can happen for a number of reasons such as moving over land or cold water or encountering dry air or wind shear.
Which sequence storm stages is in the correct order?
tropical disturbance, tropical depression, tropical storm, hurricane
Does a tropical storm have stronger winds than a tropical depression.?
Yes. A tropical storm has sustained winds of 39-73 mph. A tropical depression has winds of less than 39 mph.
When winds blow 39 mph per hour with tropical depression is a what storm?
If sustained winds reach or exceed 39 mph, a tropical depression becomes a tropical storm.
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.
What stages does a storm go through before it develops into a hurricane?
Tropical Depression and then Tropical Storm THEN Hurricane!
