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| the short-term state of the atmosphere including temperature, humidity, precipitation, wind, and visibility |
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| the average weather conditions in an area over a long period of time |
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| the apparent curving of the path of a moving object from an otherwise straight path due to the Earth's rotation |
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| a large body of air where temperature and moisture content are similar throughout |
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| a collection of small water droplets or ice crystals suspended in the air, which forms when the air is cooled and condensation occurs |
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| forms when a cold air mass moves under a warm air mass-brings thunderstorms, heavy rain, or snow |
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| a narrow belt of strong winds that blow in the upper troposphere |
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| the height of an object above sea level |
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| the sound caused by the rapid expansion of air along an electrical strike |
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| an area in the atmosphere that has lower pressure than the surrounding areas and has winds that spiral toward the center |
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| source region, forms over land; dry |
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| a gradual increase in average global temperature |
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| prevailing winds that blow from west to east between 30 and 60 degrees latitude in both hemispheres |
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| forms when a warm air mass is caught between two colder air masses-brings cool tempeatures and large amounts of rain and snow |
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| source region that forms over water; wet |
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| the warming of the surface and lower atmosphere of Earth that occurs when water vapor, carbon dioxide, and other gases absorb and reradiate thermal energy |
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| forms when a cold air mass meets a warm air mass but both masses do not have enough force to lift the warm over the cold air mass-brings many days of cloudy, wet weather |
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| a horizontal movement of ocean water that is caused by wind and that occurs at or near the ocean's surface |
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| source region, forms over the tropics; warm |
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| the temperature at which a gas condenses into a liquid |
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| source region, forms over the polar regions; cold |
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| Humidity is the amount of water vapor in the air. |
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| A warm front is a front that advances in such a way that warmer air replaces colder air. |
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| A front is the boundary between air masses of different densities and usually different temperatures. |
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| Lightning is an electric discharge that takes place between two oppositely charged surfaces, such as between a cloud and the ground, between two clouds, or between two parts of a cloud. |
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| Thunder is the sound caused by the rapid expansion of air along an electrical strike. |
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| the distance north or south from the equator; expressed in degrees |
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| winds that blow mainly from one direction during a given period |
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| the change of state from a gas to a liquid, involving cooling |
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| prevailing winds that blow from east to west from 30° latitude to the equator in both hemispheres |
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| any form of water that falls to Earth's surface from the clouds; includes rain, snow, sleet, and hail |
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| a usually brief, heavy storm that consists of rain, strong winds, lightning, and thunder |
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| a wall of water that builds up over the ocean because of strong wind and low atmospheric pressure |
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| the rotation of air around a high pressure center in the direction opposite to Earth's rotation |
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| balls or lumps formed by rain drops falling then being carried by updrafts through colder temperature |
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| the movement of air caused by differences in air pressure (high to low) |
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