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MeteorologyFinal
| Question | Answer |
|---|---|
| The relative humidity within a cloud is _____ 100 percent | about |
| A cloud that develops as a consequence of local convection is _____ | cumulonimbus |
| Which type of cloud does NOT have a relatively low base? | cirrus |
| Which type of cloud but would most likely be responsible for heavy rain? | cumulonimbus |
| The convective condensation level (CCL) closely corresponds in altitude to the base of a _____ cloud | cumulonimbus |
| What type of precipitation has the greatest terminal velocity? | hailstones |
| A warm cloud is composed of _____ | tiny water droplets |
| An example of a cloud that is always cold is _____ | cirrus |
| Drizzle may be produced by _____ clouds | stratus |
| Nearby objects fixed on the ground, such as buildings or smokestacks, reflect radar signals; such radar echoes constitute _____ | ground clutter |
| A mountain wave cloud is _____ | altocumulus lenticularis |
| Which type of cloud is most likely to be composed of ice crystals only? | cirrus |
| Of all the cloud types, which one is the warmest? | stratus |
| Fog formed when warm humid air streams over the cold surface of a lake is known as _____ | advection fog |
| Which type of cloud is most likely to be a warm cloud? | stratus |
| A cloud that may be cold at the top and warm at low levels is _____ | cumulonimbus |
| The activation temperature of the most ice-forming nuclei is _____ | well below 0 C |
| Fog formed when cold dry air streams over the surface of a relatively warm body of water is known as _____ | steam fog |
| Most precipitation that falls in midlatitudes originates in _____ clouds | cold |
| The type of frozen precipitation sometimes produced by a summer thunderstorm is _____ | hail |
| Air that blows from land to sea typically undergoes horizontal _____ near the coastline | divergence |
| In the northern hemisphere, the Coriolis effect always acts _____ | to the right of the direction of motion |
| _____ is numerically equivalent to a force per unit mass | acceleration |
| The surface air pressure is lower in a _____ | cyclone |
| Air that blows from sea to land typically undergoes horizontal _____ near the coastline | convergence |
| A weak tornado is included as a _____ system | microscale |
| In the southern hemisphere, the Coriolis effect always acts _____ | to the left of the direction of motion |
| A hurricane is included as a _____ system | synoptic-scale |
| The pressure gradient force always acts directly across isobars and towards _____ pressure | low |
| The surface air pressure is higher in an _____ | anticyclone |
| The Coriolis Effect arises from the fact that _____ | Earth rotates |
| At the equator, the Coriolis effect _____ | is zero |
| Horizontal winds are always named for the direction _____ they blow | from which |
| From the largest to smallest, the scales of atmospheric circulation are designated _____ | planetary, synoptic, meso, micro |
| _____ is the movement or air measured relative to the Earth's surface | wind |
| When the horizontal air pressure gradient is zero over a broad region, _____ | the atmosphere is calm |
| The Coriolis effect produces its maximum deflection at the _____ | poles |
| In a geostrophic wind, the horizontal pressure gradient is balanced by _____ | the Coriolis effect |
| Viewed from above in the Southern Hemisphere, surface winds about a subtropical high blow _____ | counterclockwise and outward |
| The average summer location of the polar front jet stream is _____ | southern Canada |
| The trade winds of the two hemispheres converge in the _____ | doldrums |
| Viewed from above in the Northern Hemisphere, surface winds about a subtropical high blow _____ | clockwise and outward |
| A blocking circulation pattern during the sumer of 1993 was responsible for record _____ in the midwest | flooding |
| A _____ flow pattern occurs when masses of cold air surge southward and warm air streams northward | meridional |
| The average winter location of the polar front jet steam is _____ | southern United States |
| A synoptic-scale cyclone is most likely to develop on the _____ side of an upper-air trough | east |
| A _____ flow pattern is when the north-south exchange of air masses is minimal | zonal |
| The Bermuda high is located on average _____ over the Atlantic Ocean | about 30 degrees N latitude |
| The Icelandic low is located on average _____ over the North Atlantic | about 60 degrees N latitude |
| On a typical day, _____ Rossby long-waves encircle the globe | 2 to 5 |
| A synoptic-scale cyclone is most likely to develop on the _____ side of an upper-air ridge | west |
| In the Midwest, drought is most likely with a _____ circulation pattern in the westerlies | blocking |
| The eastern flank of a subtropical anticyclone is characterized by _____ | dry climates |
| An extreme and persistent El Nino may be accompanied by _____ | weather extremes in various parts of the world |
| The western flank of a subtropical anticyclone is characterized by _____ | relatively unstable air |
| Ahead of a surface warm front the initial wispy clouds are called _____ | cirrus |
| Contrasting air masses are brought together to form fronts by surface winds about centers of _____ pressure | low |
| Precipitation tends to be steady and prolonged in the_____ sector of a wave cyclone | northeast |
| A type of cloud associated with fast-moving well-defined cold front is _____ | cumulonimbus |
| The coldest sector of a mature midlatitude cyclone is usually _____ of the cyclone center | northwest |
| A source region for maritime tropical air is _____ | tropical and subtropical ocean |
| Warm and humid air: | mT |
| _____ is a Native American word that, according to tradition, means snoweater | Chinook |
| Usually air mass modification is most rapid when _____ | continental polar air moves over bare ground |
| Cold fronts typically travel _____ warm fronts | faster than |
| The type of front formed when the leading edge of cold air merges with a warm front is known as an _____ | occluded front |
| In a wave cyclone, fog is most likely to develop _____ | just ahead of the surface warm front |
| Most major winter storms that affect the St.Louis area follow the _____ cyclone track | Colorado |
| 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 |
| When land and water are exposed to the same intensity of solar radiation, the land heats up _____ the water | more than |
| In winter, continental polar air is _____ maritime polar air | colder than |
| The warmest sector of a mature midlatitude cyclone is usually _____ of the cyclone center | southeast |
| What is the surface wind direction in the northwest sector of a mature midlatitude cyclone? | northwest |
| An example of a cold-core anticyclone is _____ | an arctic high |
| As a general rule of thumb, the higher the top of the cumulonimbus cloud the _____ severe is the thunderstorm cell | more |
| In the United States, thunderstorms are most frequent in _____ | central Florida |
| The most intense tornadoes are rater _____ on the F-scale | 5 |
| The dissipating stage of the life cycle of a thunderstorm cell is characterized by _____ | downdrafts only |
| A mesoscale convective complex (MCC) _____ | consists of numerous interacting thunderstorm cells |
| A tornadic circulation that remains aloft and does not touch the Earth's surface is known as a _____ | funnel cloud |
| In the United States, the months of peak tornado activity are _____ | April, May, June |
| A gust front is associated with an _____ | intense thunderstorm |
| A feature sometimes present in thunderstorms that may prolong the mature stage is _____ | a tilted updraft |
| Microbursts are particularly dangerous for aircraft on takeoff or landing because they trigger _____ | wind shear |
| Typically, all tornadoes that occur each yeah in the United States, most are rated _____ on the F-scale | weak |
| Over the course of a year, which state will likely experience the most tornadoes? | Kansas |
| The mature stage of the life cycle of a thunderstorm cell is characterized by _____ | both updrafts and downdrafts |
| Violent weather (hail,tornadoes) is most likely to occur during the _____ stage | mature |
| A thunderstorm cloud is a _____ cloud | cumulonimbus |
| The anvil top of a thunderstorm cloud is likely to be a _____ cloud that is composed of _____ | cirrus...ice crystals |
| In the United States, tornadoes are most often triggered by _____ | cyclones |
| Typical weather within the eye of a hurricane consists of _____ | fair skies and light winds |
| Hurricanes do not form at latitude 30 degrees N because _____ | the surface ocean water is too cold |
| Most hurricane-related fatalities are caused by _____ | coastal and inland flooding |
| It is _____ for tornadoes to accompany hurricanes | usual |
| Tornadoes _____ accompany hurricanes that make landfall on the U.S. coast | often |
| Usually the most destructive aspect of a hurricane is _____ | storm surge |
| The source of energy that sustains a hurricane circulation is _____ | latent heat |
| Hurricane winds _____ as the storm moves over land | weaken rapidly |
| The first sign that a hurricane may be developing over tropical seas is the appearance of _____ | an organized cluster of cumulonimbus clouds |
| The most hurricane-prone location in the United States is _____ | Key West, Florida |
| The highest wind speeds in a hurricane occur _____ | in the eye wall |
| The central pressure is _____ in a hurricane than in a typical midlatitude cyclone | lower |
| The major source of energy in a hurricane is _____ | release of latent heat of vaporization |
| Sustained surface winds in a hurricane are _____ | greater than 74 miles per hour |
| Most Northern Hemisphere hurricanes occur _____ | from June through November |
| When a hurricane threatens low-lying coastal areas, the most prudent strategy for residents is to _____ | evacuate to an inland shelter |
| When wind speeds reach 39 mph the system is classified a _____ and assigned a name | tropical storm |
Created by:
gnrv22
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