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Definition
| Large body of air that has the same characteristics of temperature and moisture content as the part of Earth's surface over which it formed. |
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| Winter storm that lasts at least three hours with temperatures of -12 C or below, poor visibility, and winds of at least 51 km/hr |
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| Temperature at which air is saturated and condensation forms. |
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| A stratus cloud that forms when air is cooled to its dew point near the ground. |
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| Boundary between two air masses with different temperatures, density, or moisture. |
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Definition
| Amount of water vapor held in the air. |
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Definition
| Large, severe storm that forms over tropical oceans, has winds of at least 120 km/h, and loses power when it reaches land. |
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Definition
| Lines drawn on a weather map that connect points having equal atmospheric pressure. |
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Definition
| Line drawn on a weather map that connects points having equal temperature. |
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Definition
| Studies weather and uses information from Doppler radar, weather satellites, computers and other instruments to make weather maps and provide forecasts. |
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Definition
| Water falling from clouds-including rain, snow, sleet, and hail. |
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Definition
| The measure of the amount of moisture held in the air compared with the amount it can hold at a given temperature. |
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Definition
| Indicates weather conditions at a specific location, using a combination of symbols on a map. |
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| Violent whirling windstorm that crosses land in a narrow path and can result from wind shears inside a thunderhead. |
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Definition
| State of the atmosphere at a specific time and place. |
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