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They are both intensity levels of tropical cyclone. A tropical depressions forms when a tropical disturbance gains a defined center of circulation, but has sustained wind under 39 mph. If it continues to strenthen, it will become a tropical storm when winds reach 39 mph and a hurricane when winds reach 74 mph. Most hurricanes start development as tropical depressions.
What else can I help you with?
Hurricane formation from weakest to strongest?
A hurricane will start as a Tropical Wave. It then becomes a Tropical Depression. A TD is given a number but not a name. Once the TD reaches 39 mile per hour winds its given a name and becomes a Tropical Storm. After reaching 74 mile per hour winds it becomes a hurricane.
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.
Was hurricane Andrew a tropical depression?
Yes. Hurricane Andrew was Tropical Depression Three for about a day before becoming Tropical Storm Andrew and then Hurricane Andrew 5 days later.
How was Hurricane Andrew form?
it started as a tropical disturbance at first, then it became a tropical depression, and a tropical storm, then a hurricane.
How did hurricane Andrew form?
he started as a tropical depression, then he became a tropical storm, then BAM! hurricane...!
What are the types of storms that form before a hurricane forms?
Tropical disturbance -> tropical depression -> tropical storm -> tropical cyclone (hurricane). *Hurricane is a local name, for tropical cyclones (official name) that appear in the Atlantic.
What stages does a storm go through before it develops into a hurricane?
Tropical Depression and then Tropical Storm THEN Hurricane!
What is the differce between a tropical depression and a hurricane?
A tropical depression is a relatively weak tropical system, with sustained winds less than 39 mph. A hurricane is a powerful tropical system wind winds of at least 74 mph.
Is a tropical storm first a tropical depression then a hurricane?
The progression of increasing strength is: Tropical depression (under 39 mph winds) Tropical storm (39-73 mph winds) Hurricane (winds 74 mph or higher)
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 was Hurricane Katrina first identified?
Hurricane Katrina formed as Tropical Depression Twelve over the southeastern Bahamas on August 23, 2005 as the result of an interaction of a tropical wave and the remains of Tropical Depression Ten
Before becoming a hurricane what is it called?
A tropical storm. Before that it is usually a tropical depression.
