This book was created and published on StoryJumper™
©2010 StoryJumper, Inc. All rights reserved.
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"Hey Ajnin, nice day, isn't it?" Says Brown Beard.
"Yes, it is nice. But I think a storm is coming."
Replies Ajnin.
"A storm?" Asks Olly the Alien.
"Yes. A hurricane, I think."
"What's a hurricane?" Asks Olly the Alien. "I'm not
from this planet so I don't know what you are
talking about."
"Well, let's start with how a hurricane forms." Says
Ajnin.
"Hurricanes form in tropical regions. They form
there because they need warm water of at least 80º
Fahrenheit, high humidity with moist air, light winds,
and very warm surface temperatures.
Summer and the early fall months are perfect for
hurricanes to form. Most of the Atlantic hurricanes
start on the coast of Africa.
For that the northern hemisphere hurricane season
is considered through the months of June and
November."
"Hurricanes, or tropical cyclones, are like giant
engines that use warm, moist air as fuel. That is why
they form only over warm ocean waters near the
equator.
However, hurricanes can't form on the equator
because there's no wind.
The warm, moist air over the ocean rises upward
from near the surface. Because this air moves up
and away from the surface, there is less air left near
the surface.
Another way to say the same thing is that the warm
air rises, causing an area of lower air pressure
below."
"Air from surrounding areas with higher air pressure
pushes in to the low pressure area.
Then that “new” air becomes warm and moist and
rises, too. As the warm air continues to rise, the
surrounding air swirls in to take its place. As the
warmed, moist air rises and cools off, the water in
the air forms clouds.
The whole system of clouds and wind spins and
grows, fed by the ocean’s heat and water
evaporating from the surface."
"Storms that form north of the equator spin
counterclockwise. Storms south of the equator spin
clockwise. This difference is because of Earth's
rotation on its axis.
As the storm system rotates faster and faster, an
eye forms in the center. It is very calm and clear in
the eye, with very low air pressure. Higher pressure
air from above flows down into the eye."
"Tropical cyclones usually weaken when they hit
land, because they are no longer being “fed” by the
energy from the warm ocean waters. However, they
often move far inland, dumping many inches of rain
and causing lots of wind damage before they die out
completely.
In fact, storm surges are what cause the most
damage. This is when the water level increases
greatly and floods the land."
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This book was created and published on StoryJumper™
©2010 StoryJumper, Inc. All rights reserved.
Publish your own children's book:
www.storyjumper.com
"Hey Ajnin, nice day, isn't it?" Says Brown Beard.
"Yes, it is nice. But I think a storm is coming."
Replies Ajnin.
"A storm?" Asks Olly the Alien.
"Yes. A hurricane, I think."
"What's a hurricane?" Asks Olly the Alien. "I'm not
from this planet so I don't know what you are
talking about."
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