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Weather - Glossary
Weather
The state of the atmosphere at a certain time and place. Includes ...
Water vapour
Water in gas form which is in the atmosphere and helps make the ...
Warm front
Boundary between two different air masses where warm air pushes cold ...
Troposphere
The lowest level of the atmosphere, directly above the ground, where ...
Thermometer
Instrument used to measure temperature.
Synoptic chart
Weather map using isobars to show highs, lows and fronts.
Radiosonde
Instruments attached to a balloon for measuring the weather in the ...
Precipitation
Water which falls from a cloud as rain, snow or hail.
Occluded front
Combination of warm and cold fronts as a cold front overtakes a warm ...
Millibar
Unit (mb) used to measure air pressure.
Meteorologists
Scientists who study the atmosphere and weather.
Meteorology
The scientific study of the atmosphere and weather.
Low (depression)
Area of low pressure. Often brings wet weather.
Jet stream
Strong wind 5-10 km up in the atmosphere.
Isobars
Lines drawn on a weather map, joining places of equal pressure.
Hygrometer
Instrument used to measure humidity.
Humidity
The amount of moisture in the form of water vapour there is in the ...
High (anticyclone)
Area of high pressure. Brings dry weather.
Fahrenheit
Degrees (°F) used for measuring temperature.
Evaporation
When liquid water is heated and turns into water vapour.
Dew point
The temperature at which the air cannot hold any more water vapour ...
Coriolis effect
The bending of the winds caused by the Earth spinning on its axis.
Condensation
When water vapour cools and turns into liquid water.
Cold front
Boundary between two different air masses where cold air pushes warm ...
Cloud
A mass of tiny water droplets or ice crystals.
Climate
The general weather of a place over a long period of time.
Celsius
Degrees (°C) used for measuring temperature. Also called Centigrade.
Barometer
Instrument used to measure air pressure.
Atmosphere
The blanket of air around the Earth.
Anemometer
Instrument used to measure wind speed.
Air pressure
Due to the weight of the atmosphere pressing down on the Earth's ...
Air mass
Huge mass of cold or warm air which moves around the world. Can be ...