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weather vocab
| word/definition | how it affects weather |
|---|---|
| Density-a measure of the amount of matter contained by a given volume | air with more density will sink and air with less density will rise |
| Humidity-amount of water vapor in the atmosphere | it increases the likely hood of precipitation |
| Condensation-conversion of gas to liquid | responsible for make clouds, which may produce precipitaton |
| Low pressure-warm air,less dense, and rises | associated with warm,humid, and rainy weather |
| High pressure-cool air, more dense, and sinks | associated with cool,dry and sunny weather. |
| Cold Front-leading edge of a cooler mass of air, replacing (at ground level) a warmer mass of air. | heavy rain or thunderstorms will occur for a short period of time..after it passes through the often will be clear skies and cooler temperatures |
| Warm Front-leading edge of an advancing mass of warm air; it separates warm air from the colder air ahead. | humid, cloudy weather or light rain occurs and will last for several days |
| Stationary Front-a front that has no movement, with cold air on one side and warm air on the other | can form rain,snow,fog, or clouds...can bring many days of clouds and precipitation |
| Occluded Front-when warm air mass is caught between two cold air masses | temp near ground becomes cooler...these cause weather to turn cloudy and rainy or snowy |
| Weather Map-a map showing the principal meteorological elements at a given time and over an extended region | N/A |
| Isobar-A line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period | N/A |