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An extratropical cyclone is a synoptic scale low-pressure weather system that has neither tropical nor polar characteristics, being connected with fronts and horizontal gradients in temperature and dew point otherwise known as "baroclinic zones". [5] The descriptor "extratropical" refers to the fact that this type of cyclone generally occurs ...
In most extratropical cyclones, the part of the cold front ahead of the cyclone will develop into a warm front, giving the frontal zone (as drawn on surface weather maps) a wave-like shape. Due to their appearance on satellite images, extratropical cyclones can also be referred to as frontal waves early in their life cycle.
Aerial view of Bora Bora in French Polynesia Tropical sunset over the sea in Kota Kinabalu in Malaysia. Many tropical areas have both a dry and a wet season. The wet season, rainy season or green season is the time of year, ranging from one or more months when most of the average annual rainfall in a region falls. [9]
Comparison between extratropical and tropical cyclones on surface analysis. There are a number of structural characteristics common to all cyclones. A cyclone is a low-pressure area. [18] A cyclone's center (often known in a mature tropical cyclone as the eye), is the area of lowest atmospheric pressure in the region. [18]
An extratropical cyclone is a storm that derives energy from horizontal temperature differences, which are typical in higher latitudes. A tropical cyclone can become extratropical as it moves toward higher latitudes if its energy source changes from heat released by condensation to differences in temperature between air masses.
Tropical disturbance: The system has organized convection and originates in the tropics or subtropics, having a non-frontal migratory character that’s maintained for 24 hours or longer.
A typhoon is a type of tropical cyclone that occurs in the Northwest Pacific Ocean, specifically between 100°E and 180°E longitude. It is characterized by a well-defined circular structure with ...
A tropical cyclone can become extratropical as it moves toward higher latitudes if its energy source changes from heat released by condensation to differences in temperature between air masses; [20] From an operational standpoint, a tropical cyclone is usually not considered to become a subtropical cyclone during its extratropical transition. [26]