GEOLOGY

EARTH SCIENCE

NATURAL HAZARDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What happens immediately after a hurricane makes landfall?
A
It gets stronger
B
It gets weaker
C
Its winds pick up speed
D
It starts hailing
Explanation: 

Detailed explanation-1: -The terrain of the sea helps a storm gather its maximum strength whereas on land that strength is immediately cut off due too much resistance around. The increased friction over land acts as a somewhat obstacle, i.e. in the form of bushes, trees and houses and buildings, thus decreasing the speed of sustained winds.

Detailed explanation-2: -Landfall usually causes a hurricane to quickly decay (for more detail see, Interaction between a Hurricane and Land). Hurricanes require evaporation from the warm ocean surface to survive (see Hurricane Development: From Birth to Maturity).

Detailed explanation-3: -The dissipating stage of the tropical cyclone where the surface pressure rises and the area affected by the cyclones diminishes in size as it recurves or dissipate due to friction and lack of moisture over continents or when colder and drier air enters through when they go poleward.

Detailed explanation-4: -Hurricanes 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.

Detailed explanation-5: -When a tropical cyclone passes over land or cold water, the basic fuel that drives the storm is cut off–warm ocean water–is cut off. Passing over land will quickly weaken the storm (not because of friction as some believe, but because of the loss of the warm moisture source).

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