Meterology Final
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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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