Cyclonic Storm Hamoon: Cyclonic Storm Hamoon is a tropical cyclone that formed over the Bay of Bengal and intensified into a severe cyclonic storm on October 24, 2023.
According to the India Meteorological Department (IMD), Hamoon is expected to move northeastward and weaken as it nears the Bangladesh coast on October 25, 2023. Hamoon is one of the twin cyclones that developed over the north Indian Ocean, along with Cyclone Tej, which crossed the Yemen coast on October 24, 2023.
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The IMD has issued warnings for fishermen to not venture into areas that could be affected by Hamoon and Tej in the coming days. You can see the live tracking map, satellite images and forecasts of Cyclonic Storm Hamoon on this website.
Cyclonic Storm Hamoon: What is a cyclonic storm?
A cyclonic storm is a type of weather phenomenon that involves a large system of winds rotating around a low-pressure centre. Cyclonic storms can bring heavy rain, strong winds, thunderstorms, and sometimes tornadoes or waterspouts. Cyclonic storms are also known by different names depending on the region and the intensity of the storm.
Cyclonic storms are formed when warm, moist air rises from the ocean surface and creates a low-pressure area below. The surrounding high-pressure air then moves in to fill the gap, creating a circular wind pattern.
The Coriolis force, which is caused by the Earth’s rotation, makes the wind spiral inward and rotate around the low-pressure centre. Cyclonic storms can last for several days and travel across large distances, depending on the atmospheric conditions and the steering currents. You can learn more about cyclonic storms by visiting these websites.
Cyclonic Storm Hamoon: How are cyclones classified?
Cyclones are classified based on different criteria, such as their location, intensity, structure, and origin. Here are some of the common ways of classifying cyclones:
- Based on their location, cyclones can be categorized into tropical cyclones and extratropical cyclones. Tropical cyclones form over warm ocean waters near the equator, while extratropical cyclones form over land or colder ocean waters in higher latitudes.
- Based on their intensity, tropical cyclones are further classified into tropical depressions, tropical storms, and hurricanes/typhoons/cyclones. These names depend on the region where the cyclone occurs and the wind speed threshold that is used to define them.
- For example, a tropical cyclone with wind speeds of at least 119 km/h is called a hurricane in the Atlantic and eastern Pacific, a typhoon in the western Pacific, and a cyclone in the Indian Ocean. Some regions also use additional categories or scales to measure the severity of tropical cyclones, such as the Saffir-Simpson hurricane wind scale or the Australian tropical cyclone intensity scale.
- Based on their structure, cyclones can be distinguished into polar cyclones and mesocyclones. Polar cyclones are large-scale low-pressure systems that form near the poles and are associated with cold fronts and jet streams. Mesocyclones are smaller-scale rotating columns of air that form within severe thunderstorms and can produce tornadoes.
- Based on their origin, cyclones can be classified into primary cyclones and secondary cyclones. Primary cyclones are those that develop from a single disturbance or vortex, such as a tropical wave or a low-pressure area. Secondary cyclones are those that form from the interaction of two or more primary cyclones, such as a Fujiwhara effect or a binary interaction.
I hope this helps you understand how cyclones are classified. You can learn more about cyclones by visiting these websites.