ZE one eyed monster (cyclops) Flashcards
What is a hurricane?
A hurricane is a type of storm called a tropical cyclone, which is a large rotating storm with high wind speeds of at least 74 miles per hour/ over 120 kilometres per hour that forms over tropical or subtropical waters.
Different hurricane namess
The scientific name for a hurricane is a tropical cyclone.
Tropical cyclones go by different names in different places:
> In North America and the Caribbean they are called “hurricanes”
> In the Indian Ocean they are called “cyclones”, and
> In Southeast Asia they are called “typhoons.”
Read parts of a hurricane
PLzzz <3 (froggy face)
Eye (one eye open when I’m sleeping)
At the center of the hurricane is the eye. The eye is an area of very low air pressure. There are generally no clouds in the eye and the wind is calm.
Don’t let this fool you, however, the most dangerous part of the storm is at the edge of the eye called the eye wall. (Don’t be fooled Naomi)
Eye wall
Around the outside of the eye is a wall made up of very heavy clouds. This is the most dangerous part of the hurricane and where the highest speed winds are. The winds at the eye wall can reach speeds of 155 miles per hour.
Rainbands
Hurricanes have large spirally bands of rain called rainbands. These bands can drop huge amounts of rainfall causing flooding when the hurricane hits land.
Diameter
Hurricanes can become huge storms. The diameter of the hurricane is measured from one side to the other. Hurricanes can span a diameter of over 600 miles.
Height
The storm clouds that power hurricanes can become very tall. A powerful hurricane can reach nine miles into the atmosphere.
Where do Hurricanes occur on the Earth?
From the Map one can see that most hurricanes occur close to/develop between the Equator and the Tropic of Cancer.
Where do hurricanes usually develop?
Hurricanes develop in the Mid-Atlantic Ocean between latitudes 7°N and 20°N.
Where do storms usually move
The storm usually moves in a northwesterly direction in the Caribbean.
Hurricanes are prevalent in the Caribbean and the Gulf of Mexico from June 1st to November 30th and are associated with torrential rainfalls and thunderstorms.
How are hurricanes formed?
Hurricanes form over the warm ocean water of the tropics.
When warm moist air over the water rises… what happens to it?
it is replaced by cooler air. The cooler air will then warm and start to rise. This cycle causes huge storm clouds to form. These loosely packed rain clouds forming thunderstorms is known as a Tropical Disturbance.
What happens to storm clouds?
These storm clouds will begin to rotate with the spin of the Earth forming an organized system. If there is enough warm water, the cycle will continue and the storm clouds and wind speeds will grow.
What’s classified as a tropical depression?
Continued rising and cooling of warm air and falling cool air causes wind speeds to reach between 25 and 38 mph and is classified as a Tropical Depression.