Extratropical cyclones are associated with cold, warm, and occluded fronts.

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Extratropical cyclones are associated with cold, warm, and occluded fronts, which are boundaries between different air masses with varying temperatures and moisture content. These fronts play a crucial role in the development and intensity of extratropical cyclones, as they create the temperature and pressure contrasts required for the cyclone to form and intensify. Cold fronts occur when a cold air mass advances towards a warm air mass, displacing the warm air and creating a steep frontal boundary. Warm fronts occur when a warm air mass advances towards a cold air mass, gradually lifting the cooler air and creating a more gradual frontal boundary. Occluded fronts occur when a cold front catches up and overtakes a warm front, sandwiching the warm air mass between two cold air masses and creating a complex, triple-point boundary.

Extratropical Cyclones Are Associated with Cold, Warm, and Occluded Fronts