Tornado		High level clouds that are mainly composed of ice-crystals
Rain Gauge		A severe tropical cyclone
Fujita		Visible electrical releases created by thunderstorms
Front		Thick water vapor that makes it hard to see
Humidity		Water vapor that condenses and falls as liquid precipitation
Cirrus		The leading edge of an advancing storm system
Rain		The study of weather
Thunderstorm		The amount of water vapor in the air
Hurricane		The densest layer of the atmosphere
Fog		An overflowing of water onto land that is normally dry
Precipitation		Over 40,000 of these weather phenomena occur everyday
Meterology		A vortex of air rising into a cloud
Lightning		Any form of water that falls from clouds and reaches the ground
Blizzard		A storm with strong winds, heavy snow, and severe cold
Flood		A tornado scale
Troposphere		Device for measuring the amount of precipitation that has fallen