Make your own free website on Tripod.com
Meteorological Terms
Home
Current Forecast
Seven Day Forecast
Map Room
Storm Alerts
Tropical Storm Report
Moon Outlook
Sunrise/Sunset
Temperature Converter
Clouds
Meteorological Terms
Contact Us
Related Sites
Widgets
Global Support Links
HAS
Recycle Earth

Horizontal Divider 1

Absolute Zero- The temperature at which movement of molecules completely stops (-273C/-459F/0K)

 

Air MassA large body of air where the temperature and humidity are at distinct levels.

 

Air PressureAn measurement of force pushed down on the earth by air.

 

Anemometer- An instrument used to measure the speed of wind.

 

Atmosphere- The blanket of air that surrounds the earth. There are three main layers: the Troposphere, the Ionosphere and the Stratosphere.

 

BarometerAn instrument that measures the pressure in the air.

 

Climate- The weather for a specific area over a period of time.

 

Clouds- Large formations of water droplets, ice crystals and dust held together.

 

Cold Front- The boundary created when a cold air mass collides with a warm air mass.

 

Condensation- The process in which water vapor cools down and converts back into a liquid. Sometimes the water vapor freezes and creates tiny ice crystals that collide with one another over and over again, which produces snow.

 

Convection- The process in which warm air rises and cool air sinks.

 

Dew Point- The temperature at which condensation takes place.

 

Downdraft- The downward movement of cold air.

 

Evaporation- The process in which liquid water converts into water vapor. 

 

Front- The boundary between two air masses.

 

Funnel Cloud- A spinning funnel or cone-shaped cloud that slowly drops out of the sky, sometimes forming a tornado.

 

High-pressure System- A large air mass that spins counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. This pressure system brings good weather.

 

Humidity- The amount of water vapor in the air.

 

Hurricane- A destructive tropical storm which brings extremely high winds.

 

Hygrometer-  An instrument that measures the humidity in the air.

 

Jet Stream- Fast-moving trails of air high in the atmosphere.

 

Low-pressure System- A large air mass that spins counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. This pressure system brings precipitation.

 

Occluded Front- A composite front when colder air surrounds a mass of warm air and forces it aloft.

 

Ozone Layer- A form of oxygen, in the atmosphere, that filters out ultra violet rays that are produced by the sun.

 

Precipitation- Any form of water falling from the sky such as rain, snow, hail or freezing rain.

 

Radar- An instrument that sends out radio waves that bounce off ice crystals and water droplets.

 

Rain Gauge- An instrument that measures the amount of rainfall in an area.

 

Relative Humitity- The percentage of water vapor that the air can hold at any given time.

 

Satellite- An instrument that orbits the earth and receives data on the measurements of the upper atmosphere.

 

Stationary Front- The boundary in which a cold air mass and a warm air mass move along side by side.

 

Temperature- The measurement of the average kinetic energy of molecules in the air.

 

Thermometer- An instrument that measures the temperature of the air, usually in Celsius (C) or Fahrenheit (F).

 

Tornado- A funnel shaped cloud that touches the ground and creates massive destrucion.

 

Tropical Storm- A storm that forms over warm water and spins at high speeds.

 

Updraft- The upward movement of warm air.

 

Warm Front- The boundary created when a warm air mass collides with a cold air mass.

 

Water Vapor- Water in its gas form.

 

Wind- The horizontal movement of air across the surface of the earth.