Tropical cyclones are warm-core, low-pressure systems that form over warm ocean waters near the equator. They are also known as hurricanes, typhoons, or tropical storms.
Extratropical cyclones are cold-core, low-pressure systems that form at high latitudes. These storms are often associated with fronts, which are boundaries between air masses with different temperatures and densities.
Mesoscale convective systems are smaller-scale storms that are characterized by strong updrafts and downdrafts. These storms can produce heavy rain, hail, lightning, and tornadoes.