the speed is 39mph and 74mph respectively
Hurricane Andrew obviously started as a Tropical storm . every single hurricane starts as a tropical storm hurricanes can sometimes go from a tropical storm to A Up from hurricane to a tropical storm very quickly . but the wind speed to start a hurricane is 74 anything less is a tropical storm
A tropical storm becomes a hurricane when its sustained winds reach or exceed 74 mph (119 km/h). This increase in wind speed marks the transition from a tropical storm to a hurricane on the Saffir-Simpson Hurricane Wind Scale.
By measuring the sustained wind speed. If the wind speed of a tropical cyclone is anywhere in the range of 39 to 73 mph then it is a tropical storm. If the wind speed is 74 mph or greater then it is a hurricane.
A wind speed exceeding 74 miles per hour indicates a tropical storm. Prior to reaching this speed, a tropical system is categorized as a tropical depression or tropical disturbance based on its wind speeds and organization. Once wind speeds reach at least 39 miles per hour, it is classified as a tropical storm.
That is highly variable and is in fact a measure of the hurricane's size. The radius of tropical storm force winds in a hurricane can be less than 100 miles, to more than 600 miles.
The determining factor is the sustained wind speed. If the tropical system has sustained winds of less than 39 miles per hour, then it is a tropical depression. If sustained winds are in the range of 39 to 73 mph, then it is a tropical storm. If sustained winds are 74 mph or faster, then it is a hurricane.
A speed of 93 miles per hour has no significance in tropical systems. At 74 miles per hour a tropical storm becomes a category 1 hurricane. At 96 miles per hour a hurricane is considered to be a category 2.
The main difference between a hurricane and a tropical storm is their wind speeds. A hurricane has sustained winds of at least 74 mph, while a tropical storm has winds between 39-73 mph. Additionally, hurricanes are more organized and powerful than tropical storms.
The category of the storm - depends on the wind speed, and barometric pressure reading.
A storm's winds must reach a minimum speed of 74 miles per hour (119 kilometers per hour) to be classified as a hurricane.
A tropical storm must have sustained winds of at least 74 mph to be considered a hurricane. If the wind is not associated with a tropical storm, however, it is not a hurricane event if it does reach this speed.
The determining factor is the sustained wind speed. If the tropical system has sustained winds of less than 39 miles per hour, then it is a tropical depression. If sustained winds are in the range of 39 to 73 mph, then it is a tropical storm. If sustained winds are 74 mph or faster, then it is a hurricane.