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what's happening in the atmosphere at a certain time and place weather
a measure of the average amount of motion of molecules; faster motion = warmer temperatures temperature
instrument used to measure wind speed anemometer
instrument used to measure temperature thermometer
instrument used to measure wind direction wind vane (weather vane)
instrument used to measure relative humidity psychrometer
amount of water vapor in the air humidity
amount of water vapor in the air compared to the amount needed for saturation (PERCENTAGE) relative humidity
the TEMPERATURE at which air is saturated and condensation forms dew point
the constant cycling of all waters on Earth the water cycle
process in which liquid water changes to water vapor (liquid to gas) evaporation
process of water vapor changing to a liquid water (gas to liquid) condensation
any form of water that falls from clouds (rain, snow, sleet, hail) precipitation
a large body of air with similar temperature and humidity levels air mass
instrument used to measure air pressure barometer
an imaginary boundary between two air masses of different temperature or moisture levels front
a violent,rotating column of air caused by winds at different heights blowing in different directions and at different speeds tornado
large, swirling low-pressure system forming over tropical (warm) waters with wind speeds greater than 74 mph hurricane
area of calm in the center of a hurricane eye
a person who studies the weather meteorologist
collection of symbols showing weather conditions at a specific location station model
line connecting areas of equal temperature isotherm
line connecting areas with equal air pressure isobar
Created by: lewisch