study for vocab test, weather Flashcards
long-term average weather conditions that occur in a particular region
climate
atmospheric conditions of a certain place at a certain time
weather
a scientific instrument used to measure atmospheric pressure
barometer
large bodies of air that have the same temperature, humidity, and pressure
air mass
a boundary between two air masses
front
a cold air mass pushes under a warm air mass,showers and thunderstorms often occur
cold front
a warm air mass rise over a cold air mass, brings steady rain followed by warmer, more humid weather
warm front
a warm air mass and a cold air mass meet but stalls, brings cloudy skies and light rain
stationary front
A fast-moving cold front catches up with a slow moving warm front, usually brings precipitation
Occluded front
Air pressure is higher than surrounding areas due to sinking air, typically results in fair weather conditions, such as clear, sunny skies
High pressure system
Air pressure is lower than surrounding areas due to rising air, typically results in unsettled weather conditions such as cloudiness and precipitation(rain or snow) including storms
Low pressure system
Amount of water vapor in the air
Humidity
