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Meterology Final

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Quetions
Answer
Fog formed when warm humid air streams over the cold surface of a lake is known as   advection fog  
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The which cloud is most likely to be a warm cloud?   stratus  
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The activation temperature of the most ice-forming nuclei is_____0 C.   well below  
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The relative humidity within a cloud is______100 percent.   about  
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A cloud that develops as a consequence of local convection is   cumulonimbus  
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An example of a cloud that is always cold is   cirrus  
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Drizzle may be produced by_____clouds.   stratus  
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Which of the following cloud types would be most likely to be responsible for heavy rain?   cumulonimbus  
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Which of the folowing is most likely to be composed of ice crystals only?   cirrus  
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A cloud that may be cold at the top and warm at low levels:   cumulonimbus  
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The type of frozen precipitation sometimes produced by a summer thunderstorm is   hail  
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All of the following typically have relatively low bases with the exception of   cirrus  
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A mountain-wave cloud:   altocumulus lenticularis  
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Of the following cloud types, which one is the warmest?   stratus  
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Fog formed when cold dry air streams over the surface of a relatively warm body of water is know as   steam fog  
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The convective condensation level (CCL) closely corresponds in altitude to the base of a _____cloud.   cumulonimbus  
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Which one of the following has the greatest terminal velocity?   hailstone  
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Most precipitation that falls in midlatitudes originates in______clouds.   cold  
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A warm cloud is composed of   water droplets  
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Nearby objects fixed on the ground, such as buildings or smokestacks, reflect radar signals; such radar echoes constitute   ground clutter  
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Air that blows from land to sea typically undergoes horizontal_____near the coastline.   divergence  
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In the northern hemisphere, the Coriolis effect always acts   to the right direction of motion  
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______is numerically equivalent to a force per unit mass.   acceleration  
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The surface air pressure is lower in an   cyclone  
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Air that blows from sea to land typically undergoes horizontal_______near the coastline.   convergence  
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A weak tornado is included as a _________ system.   microscale  
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In the southern hemisphere, the Coriolis effect always acts   to the left of the direction of motion  
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A hurricane is included as a ________ system.   synoptic-scale  
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The pressure gradient force always acts directly across isobars and towards ______ pressure.   low  
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The surface air pressure is higher in an   anticyclone  
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The Coriolis Effect arises from the fact that   earth rotates  
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At the equator, the Coriolis effect   is zero  
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Horizontal winds are always named for the direction______they blow.   from which  
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From the largest to smallest, the scales of atmospheric circulation are designated   planetary, synoptic, meso, micro  
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_______is the movement of air measured relative to the Earth's surface.   wind  
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When the horizontal air pressure gradient is zero over a broad region,   the atmosphere is calm  
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The Coriolis effect produces its maximum deflection at the   poles  
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In a geostrophic wind, the horizontal pressure gradient is balanced by   the Coriolis effect  
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Viewed from above in the Southern Hemisphere, surface winds about a subtropical high blow   counterclockwise and outward  
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The average summer location of the polar front jet stream is   southern Canada  
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The trade winds of the two hemispheres converge in the   doldrums  
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Viewed from above in the Northern Hemisphere, surface winds about a subtropical high blow   clockwise and outward  
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A blocking circulation pattern during the summer of 1993 was responsible for record _______ in the midwest.   flooding  
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A _______ flow pattern occurs when masses of cold air surge southward and warm air streams northward.   meridional  
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The average winter location of the polar front jet stream is   southern US  
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A synoptic-scale cyclone is most likely to develop on the______side of an upper-air trough.   east  
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A ______ flow pattern is when the north-south exchange of air masses is minimal.   zonal  
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The Bermuda high is   located on average about 30 degrees N latitude over the Atlantic Ocean  
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The Icelandic low   is located on average about 60 degrees N latitude over the North Atlantic  
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On a typical day,_______Rossby long-waves encircle the globe.   2 to 5  
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A synoptic-scale cyclone is most likely to develop on the_______side of an upper-air ridge.   west  
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In the Midwest, drought is most likely with a______circulation pattern in the westerlies.   blocking  
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The eastern flank of a subtropical anticyclone is characterized by   dry climates  
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An extreme and persistent El Nino   may be accompanied by weather extremes in various parts of the world  
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The western flank of a subtropical anticyclone is characterized by   relatively unstable air  
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Ahead of a surface warm front the initial wispy clouds are called __________.   cirrus  
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Contrasting air masses are brought together to form fronts by surface winds about centers of______pressure.   low  
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Precipitation tends to be steady and prolonged in the______sector of a wave cyclone.   northeast  
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A type of cloud associated with fast-moving, well-defined cold front:   cumulonimbus  
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The coldest sector of a mature midlatitude cyclone is usually________of the cyclone center.   northwest  
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A source region for maritime tropical air is   tropical and subtropical ocean  
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Warm and humid air:   mT  
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_______ is a Native American word that, according to tradition, means snoweater.   Chinook  
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Usually air mass modification is most rapid when   continental polar air moves over bare ground  
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Cold fronts typically travel______warm fronts.   faster than  
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The type of front formed when the leading edge of cold air merges with a warm front is known as   an occluded front  
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In a wave cyclone, fog is most likely to develop   just ahead of the surface warm front  
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Most major winter storms that affect the St. Louis area follow the________cylone track.   Colorado  
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An intense synoptic-scale cyclone tracks up the Mississippi River Valley and passes west of Chicago. As the cold front sweeps through Chicago, the wind shifts from the south to the   southwest  
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When land and water are exposed to the same intensity of solar radiation, the land heats up_______the water.   more than  
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In winter, continental polar air is______maritime polar air.   colder than  
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The warmest sector of a mature midlatitude cyclone is usually________of the cyclone center.   southeast  
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What is the surface wind direction in the northwest sector of a mature midlatitude cyclone?   northwest  
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An example of a cold-core anticyclone is   An Arctic High  
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Voilent weather (hail,tornadoes) is most likely to occur during the_______stage.   mature  
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A feature sometimes present in thunderstorms that may prolong the mature stage is (are)   a tilted updraft  
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In the United States, tornadoes are most often triggered by   cyclones  
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The mature stage of the life cycle of a thunderstorm cell is characterized by   both updrafts and downdrafts  
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The dissipating stage of the life cycle of a thunderstorm cell is characterized by   downdrafts only  
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A thunderstorm cloud:   cumulonimbus  
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A gust front is associated with an   intense thunderstorm  
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In the United States, thunderstorms are most frequent in   central Florida  
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The anvil top of a thundrstorm cloud is likely to be a_______cloud that is composed of________.   cirrus.....ice crystals  
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As a general rule of thumb, the higher the top of the cumulonimbus cloud the_______severe is the thunderstorm cell.   more  
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Microbursts are particularly dangerous for aircraft on takeoff or landing because they trigger   wind shear  
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A tornadic circulation that remains aloft and does not touch the Earth's surface is known as a   funnel cloud  
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A mesoscale convective complex (MCC)   consists of numerous interacting thunderstorm cells  
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Typically, all tornadoes that occur each year in the United States, most are rated as_______on the F-scale.   weak  
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The most intense tornadoes are rated_______on the F-scale.   5  
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Over the course of a year which one of the following states will likely experience the most tornadoes?   Kansas  
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In the United States, the months of peak tornado activity are   April, May , June  
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Typical weather within the eye of a hurricane consists of   fair skies and light winds  
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Hurricanes do not form at latitude 30 degrees N because   the surface ocean water is too cold  
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Most hurricane - related fatalities are caused by   coastal and inland flooding  
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It is ________ for tornadoes to accompany hurricanes   usual  
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Tornadoes _________ accompany hurricanes that make landfall on the U. S. coast.   often  
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Usually the most destructive aspect of a hurricane is   storm surge  
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The source of energy that sustains a hurricane circulation is   latent heat  
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Hurricane winds   weaken rapidly as the storm moves over land  
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The first sign that a hurricane may be developing over tropical seas is the appearance of   an organized cluster of cumulonimbus clouds  
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The most hurricane - prone location in the United States is   Key West Florida  
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The highest wind speeds in a hurricane occur   in the eye wall  
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The central pressure is _________ in a hurricane than in a typical midlatitude cyclone.   lower  
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The major source of energy in a hurricane is   release of latent heat of vaporization  
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Sustained surface winds in a hurricane are   are greater than 74 miles per hour  
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Most Northern Hemisphere hurricanes occur   June- November  
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When a hurricane threaghtens low - lying coastal areas, the most prudent strategy for residents is to   evacuate  
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When winds speeds reach 39 mi per hour the system is classified a _________ and assigned a name.   tropical storm  
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