How can we help?
You can also find more resources in our
Select a category
Something is confusing
Something is broken
I have a suggestion
What is your email?
What is 1 + 3?
A huge body of air that has similar temperature, humidity, and air pressure at any given height
A boundary between two air masses of different density, moisture, or temperature.
A small storm often accompanied by heavy precipitation and frequent thunder and lightning.
A large, powerful storm that forms over warm ocean waters.
A rising of the sea as a result of atmospheric pressure changes and wind associated with hurricanes.
An instrument for recording the speed and direction of wind
An instrument for measuring temperature
An instrument used to measure wind direction (NOT speed) sometimes called a wind sock.
An instrument used to measure the moisture content in the environment.
An observed change in the frequency of a wave when the source or observer is moving. Used to track clouds and precipitation.
Lines on a weather map that joins places that have the same air pressure.
An instrument used to measure atmospheric pressure
An instrument used to measure precipitation (usually rain or snow).
High-altitude clouds that are thin, usually an indicator of fair weather.
Clouds that look like balls of cotton. They are low lying clouds that usually indicate good weather.
Dark grey sheets of clouds which form close to the ground . These tend to bring rain or snow.
The amount of water vapor in the air.
The comparison of the actual amount of water vapor in the air to the amount of water vapor the air could have (if full saturation were reached).
In weather terms, this refers to the maximum amount of water the air can contain.
The temperature at which condensation forms on the ground.