air that surrounds Earth
atmosphere
the layer of gases closest to Earth's surface
troposphere
air pressing onto a surface
air pressure
water vapor in the air
humidity
a tool that measures air pressure
barometer
heat going from one place to another through movement of a gas or liquid
convection
winds that blow around Earth in given directions over long distances
global wind
the average weather conditions of a place
climate
the ongoing movement of ocean water
current (ocean)
a large amount of air that has similar temperature and humidity throughout
air mass
a meeting place between two air masses
front (weather)
a rainstorm that includes lightening and thunder
thunderstorm
a spinning funnel cloud that has winds up to 480 kilometers (299 miles) per hour
tornado
a storm with low pressure at its center and spinning winds
cyclone (syn.) typhoon, hurricane (tropical storms)
a large spinning storm that has winds over 117 kilometers (73 miles) per hour
typhoon / hurricane
a large rise in the height of ocean water caused by a hurricane / typhoon
storm surge
to make an educated guess about what may happen based on careful observation
forecast
a map that shows weather conditions over an area at a given time
weather map