What is Arctic Air?

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...