What is Fog?

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

A very cold high pressure that originates over the Arctic Ocean.

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...