How is an extratropical cyclone different from a tropical cyclone?

Answer:
Extratropical cyclones are typically connected to fronts and usually form along boundaries of air masses of different temperature and/or dew point.

Tropical cyclones are different in that they have what is called a "warm core" and a fueled by a somewhat different mechanism.
First answer by Stormish. Last edit by Stormish. Contributor trust: 534 [recommend contributor recommended]. Question popularity: 2 [recommend question].