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An artist's idea of how a hurricane would look
if it were cut in half vertically so you could see the inside. The
separate rainbands are visible, and arrows show the wind patterns in the
storm.
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 This image shows four views from a 3D visualization of a hurricane that has been chopped in half vertically. The two bottom views are from the side, and two top are from a 45-degree angle, looking down at the hurricane. Two of the views show the cloud surfaces as solid white and grey, while two of them show the cloud surfaces in wireframe. The hurricane's eye is surrounded by the stormy eyewall, which extends outward as it goes up. Surrounding the eyewall are four rainbands, like rings around the hurricane. Arrows labeled "1", point upward from the ocean surface into each of the rainbands and both sides of the eyewall. Arrows labeled "2", run parallel to the water surface between the rainbands, running counterclockwise spirals inward toward the eye. Arrow labeled "3", starts at the water surface in the eyewall, and spirals counterclockwise upward toward the top of the hurricane. |
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This image shows a hurricane's eyewall ringed by five progressively shorter rainbands extending from right to left. The rainbands are cut vertically. The tops and outer left and right edges of each rainband are green, which indicates light rain. The shading changes from green to yellow toward the center of each rainband. Three of the rainbands have red and orange shading, which indicates heavy rain in their lower core areas. The outer rainbands are shorter and weaker than the inner ones. Rainbands typically are 3-30 miles wide and up to 300 miles long." | ||
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This image shows a vertical cross section of a
typical rainband. The upper section and left and right sides of the cross
section indicating that there is less liquid water and rain at the edges.
Yellow, orange, and red shades toward the lower center indicate moderate
to heavy rainfall totals. Rainbands produce heavy rainfall, as much as 25
cm (10 in.) per hour. An inset image, (2), shows a radar image of a hurricane. Rainbands are indicated by the semi-circles of yellow and orange that are interspersed with green and blue areas of light rain between the bands. |
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This image shows two cutaway views of a
hurricane eye and eyewall. In the top image, cloud surfaces are shown in
white and grey. In the bottom image, cloud surfaces are shown by the
wireframe contours. The eye (1) is clear and free of clouds. Around it is the eyewall (2). Arrows point upward from the ocean surface into the eyewall indicating upward airflow. Another long arrow (3) shows the path of warm moist air as it enters the eyewall near the surface and spirals counterclockwise upward as it cools. The cooling is indicated by a gradual transition in the arrow color from orange at the surface to blue at the top of the hurricane. When the air reaches the top, part of it spreads outward, and starts to turn clockwise. Another part of the high-level air is drawn into the eye, where it warms as it sinks, as indicated by the arrows (4), which start out blue at the top but turn orange as they point downward into the eye.
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This image shows two cutaway views of a
hurricane's upper regions. In the top image, cloud surfaces are shown in
white and grey. In the bottom image, cloud surfaces are shown by the
wireframe contours. An upward spiraling arrow, (1), transitions to blue (indicating cold temperatures) as it reaches the top of the hurricane. Then it spirals outward from the center with a clockwise turn. Fluffy white cirrostratus clouds (3) spread out and cover the upper areas where the air flows out. Two smaller arrows, (2), flow out from the highest level of the spiral, pointing downward into the hurricane's eye. These arrows start out blue but transition to orange as they go down, indicating the warming that occurs as air descends into the eye.
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This image shows a wide, rounded mound of
water (1) on the ocean surface beneath a hurricane. This rise in the sea
level can produce devastating flooding when a hurricane strikes land,
particularly if it is combined with high tides.
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