extratropical cyclone is frontal depressions both with cold front and warm front air masses
Westerlies.
Hurricanes do, but not all cyclones do. Hurricanes fally into a class of weather phenomenon called a tropical cyclone. There are other types of cyclone, however, including mid-latitude or extratropical cyclones, and polar lows.
Middle-latitude cyclones (also called extratropical lows) often have a comma shape.
A number of storms in the northern hemisphere have such characteristics including tropical cyclones (hurricanes an typhoons), some extratropical cyclones, and most tornadoes (on rare occasions they are anticyclonic).
at high latitudes, at the junctions between the polar cells and the ferrell cells
Not necessarily. Although tropical cyclones can only form over warm ocean water, extratropical cyclones can form over land.
extratropical cyclone is frontal depressions both with cold front and warm front air masses
Hurricanes and typhoons occur in tropical areas, but can move into extratropical areas as well. There are different types of cyclone, however. Tropical cyclones (hurricanes, typhoons, tropical storms and tropical depressions) form in tropical regions but extratropical and polar lows are cyclones as well.
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.
Westerlies.
Hurricanes do, but not all cyclones do. Hurricanes fally into a class of weather phenomenon called a tropical cyclone. There are other types of cyclone, however, including mid-latitude or extratropical cyclones, and polar lows.
There are mid-latitude or extratropical cyclones in Denmark, but hurricanes are a tropical phenomenon and cannot get that far north.
Yes. Texas can be affected by both tropical and extratropical cyclones.
No. All hurricanes and other tropical cyclones above tropical depression strength get named, however extratropical cyclones are not named. Tornadoes never get names.
Some do. Tropical cyclones (hurricanes, typhoons etc.), extratropical cyclones/lows, Some thunderstorms (mostly supercells), and tornadoes are all storms that rotate.
There have already been many cyclones this year, both tropical and extratropical, and there will almost certainly be more.