Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones, are low-pressure areas which, along with the anticyclones of high-pressure areas, drive the weather over much of the Earth.

What do you mean by extra-tropical cyclone?

extratropical cyclone, also called wave cyclone or midlatitude cyclone, a type of storm system formed in middle or high latitudes, in regions of large horizontal temperature variations called frontal zones. ... Typical weather sequences are associated with extratropical cyclones.

What is a difference between tropical and extratropical cyclones?

In the case of a tropical cyclone, it is due to cloud/rain formation from the warm moist air of the tropics. ... These differences are due to the tropical cyclone being “warm-core” in the troposphere, whereas extra-tropical cyclones are “warm-core” in the stratosphere and “cold-core” in the troposphere.