Weather
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each of the black spaces below before clicking
on it to display the answer.
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| Air mass | A larger body body of air in the troposphere with similar characteristics of pressure, moisture, and temperature
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| Air pressure gradient | the difference in air pressure for a specific distance
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| anemometer | device used to measure wind speed
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| Atmospheric (barometric) pressure | the pressure due to the weight of the overlying atmosphere pushing down on any given area
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| barometer | device used to measure air pressure
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| Cloud cover | The fraction of percent of the total sky at a location that is covered by clouds; usually expressed in tenths
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| Cold front | The boundary of an advancing cold air mass and a warmer air mass, where the underlying cold air pushes forward like a wedge; characterized by a steep
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| cyclone | a low pressure portion of the troposphere that has air moving towards its center, usually rotates counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere; includes hurricanes, tornadoes, and mid-latitudes, also called a low
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| Dew point | the temperature at which air is filled with water vapor
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| front | where two air masses of different characteristics meet, an interface, or boundary
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| humidity | a general term that refers to the water vapor content of the atmosphere
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| isobar | air pressure is often shown on weather maps by the use of isolines
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| Jet stream | bands of easterly moving air at the top of the troposphere
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| monsoon | regular and extreme weather changes caused by the shifting wind and pressure belts
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| Occluded front | the boundary of opposing wedges of cold air masses formed when a cold front overtakes a warm front, lifting the warm air mass off the ground
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| Planetary wind belt | East-West zones on Earth where the wind blows from one direction much of the time
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| Polar front | an ever changing boundary in the middle latitudes between the colder air masses toward the poles and the warmer air masses toward the equator
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| precipitation | falling liquid or solid of water from clouds toward Earth’s surface
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| probability | chance or likelihood of something happening.
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| psychrometer | an instrument that is used to indirectly measure the amount of water vapor in the air, such as a sling psychrometer
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| radar | stands for RAdio Detection And Ranging instrument-reflects radio electromagnetic energy off the aerosols of precipitation and clouds
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| Relative humidity | the ratio of the amount of water vapor in the air to the maximum amount it can hold
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| Stationary front | a weather condition in which the boundary between two air masses remains in the same position
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| Station model | indicates a site’s weather variables for a specific time of day
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| troposphere | the part of the atmosphere imediately above the Earth’s surface; where most weather changes occur
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| visibility | the furthest distanceat which one can see a pominant object at Earth’s surface with the naked eye.
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| Warm front | the boundary of an advancing warm air mass and a retreating wedge of a cooler air mass
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| Water vapor | gaseous water in the atmosphere
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| Weather variables | condition of the atmosphere such as temperature, air pressure, wind, moisture, cloud cover, precipitation, and storms
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| Tornado | a rapidly rotating, extremely low-pressure funnel that hangs down from thunderstorm clouds towards earth’s surface
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| Thunder storm | heavy rainstorm accompanied by thunder and lightning from thunderstorm type clouds
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| blizzard | a storm with winds of 35 miles an hour or greater associated with considerable amounts of falling and/or blowing snow
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Created by:
PRO Teacher
etucci
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