Which of the following is NOT true concerning surface winds? Wind speeds/directi

Question

Which of the following is NOT true concerning surface winds? Wind speeds/directions that change abruptly with height are said to be shearing. Surface winds are usually strongest (and gusty) during the overnight hours. Wind's generally increase with height because friction slows the wind closest to the surface. Match the following wind patterns to their appropriate descriptions. Nina Nino Low level jet land breeze Sea breeze Katabatic wind Chinook wind Mountain breeze Valier breeze Nighttime clouds tend to form over coastal water due to winds blowing offshore with higher pressure over cooled land and lower pressure over relatively warmer water Afternoon thunderstorms tend to form over coastal land due to winds blowing onshore with higher pressure over relatively cooler water and lower pressure over heated land Occurs during day; mountain side warms quickly, creating lower pressure; cooler, higher pressure air in valley blows up mountain toward warmer, lower pressure air Occurs at night; air cools quickly on mountain side (creating high pressure) and flows toward warmer valley (toward lower pressure); more localized effect of lighter wind speeds Warm, dry air moves down slope dry adiabatic ally down the lee side of a mountain; also known as a fond wind Current of abnormally warm water that replaces normal cold surface water along the coast of Peru and Ecuador during December as winds pile warm water along coastline pushing colder surface water deeper Cold, dense air moves down slope overnight by the force of gravity; strong, large scale wind effect The strong influx of warm, moist air that fuels thunderstorms in the Plains Central and eastern tropical Pacific Ocean turns even cooler than normal as strong winds blow warm surface water westward

Explanation / Answer

13) Answer : Surface winds are usually strongest (and gusty) during overnight hours.

Note: The wind speeds generally reduce after sun-set because at night the surface of the Earth cools faster than the air above the surface.

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