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Weather
The vocabulary about weather
| Term | Definition |
|---|---|
| Humidity | The measure of the amount of water vapor in the air. |
| Relative Humidity | The percentage of water vapor in the air compared to the highest amount of vapor the air can contain at a specific temperature. |
| Psychrometer | The instrument used to measure relative humidity. |
| Condensation | The process in which water vapor condenses to make clouds. |
| Dew point | The temperature that water vapor condenses. |
| Cirrus | A type of cloud that is made from ice crystals, forms at high levels , about 6 km, and is feathery. |
| Cumulus | A type of cloud that is fluffy, forms about 2 km above ground, which may stretch until 18 km tall, and is common on sunny days. |
| Stratus | A type of cloud that is spread out and may cover most of the sky, and is gray. As they thicken, they may produce a form of precipitation. |
| Air mass | A body of air that is similar in temperature and humidity |
| Tropical | The type of air mass that is warm. |
| Polar | The type of air mass that is cold. |
| Maritime | The type of air mass that is humid |
| Continental | The type of air mass that is dry |
| Front | The boundary where two air masses meet. |
| Occluded | A font that occurs when warm air mass is trapped between two cold air masses. |
| Cyclone | A twirling center of low pressure air. |
| Anticyclone | A twirling center of high pressure air. |
| Storm | A massive disturbance in the atmosphere. |
| Thunderstorm | A type of storm that a type of precipitation may come from. Thunderstorms come from cumulonimbus clouds come from. |
| Hurricane | A fast tropical cyclone that begins over warm ocean waters. |
| Storm surge | a mound of water that goes to the coast of where the hurricane landed. |
| Meteorologists | People who study the atmosphere, including the weather and climate. |
| Isobar | Lines on a weather map that connect the points where air pressure is equal |
| Isotherm | Lines on a weather map that connect the points where temperature is the same. |