What is Backing Winds?
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground winds tend to veer (rotate clockwise) and increase in speed with sunrise, while at night, the winds back (rotate counterclockwise) and slow down. This pattern is observed in the Northern Hemisphere over land and is known as heliotropic wind behavior. Wind speed is influenced by vertical air movements caused by the heating of the ground. The greatest changes in wind direction and speed occur at midday when heating is at its peak. Mornings are typically the calmest period for wind.
Glossary
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...
The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
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 image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
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