The name of the cyclone in the world is given by the Member countries of different Meteorological departments and Organization all over the world. The naming of Tropical cyclones in the Indian Ocean region given by 8 pannel member countries (India, Pakistan, Sri Lanka, Bangladesh, Maldives, Myanmar, Oman, and Thailand).
- A cyclone is a rotating of winds anti-clockwise in the Northern Hemisphere around a low-pressure center area seas and oceans. The air rises over and cools, creating clouds and precipitation.
- The winds of this are blows in a circular manner in the anticlockwise direction in the Northern hemisphere and clockwise direction in the Southern hemisphere.
- On the other hand, in tropical regions, they occur due to intense heating up of air in some regions causing very low pressure in these locations. Tropical seas and oceans are most conducive to the development of Tropical Cyclones.
- Low pressure and atmospheric instability turn to cyclone if the temperature of water at the sea level rises above 26.5 degrees Centigrade and there is the high relative humidity of the atmosphere at a height of more than 700 m.
- The low-pressure areas, the pressure of air increasing outward, and closed air circulation from outside towards the central low pressure in such a way that air blows inward in the anticlockwise direction in the Northern hemisphere and in the clockwise direction in the Southern hemisphere.
Eye of the cyclone:
The eye of the cyclone lies in the center of the cyclone. It has abnormally high temperatures and the lowest pressure. The general direction of cyclones in the Bay of Bengal is from east to west.
Classification of Cyclone according to Speed:
- Low-Pressure Area:Less than 17 knots ( < 31 kmph)
- Depression:17 to 27 knots ( 31 to 49 kmph)
- Deep Depression:28 to 33 knots ( 50 to 61 kmph)
- Cyclonic Storm:34 to 47 knots ( 62 to 88 kmph)
- Severe Cyclonic Storm:48 to 63 knots ( 89 to 118 kmph)
- Very Severe Cyclonic Storm:64 to 119 knots ( 119 to 221 kmph)
- Super Cyclonic Storm: 120 knots and above ( 222 kmph and above)
Cyclones are mainly of two types according to Area:-
- Tropical Cyclone
- Temperate Cyclone
- They are found in the trade wind belt, between 8-20 degrees North and South.
- It travels from East to West in the Easterly wind belt.
- Tropical cyclones are much smaller with a diameter of about 200 to 500 km.
- Tropical cyclones are non-frontal in nature.
- It is formed only over the oceans.
- A tropical cyclone can form only in the summer.
- Normally found between 30 to 65 degrees North and South in the subpolar frontal zone, where cold polar air mass meets the warm tropical air mass.
- It moves from West to East embedded in the Westerly wind belt.
- They form over a much large area with a diameter of 300 to 1500 km.
- Temperate cyclones are frontal in nature.
- They can form both in summer as well as in winter.
- It is formed either over continents or over the oceans.
Yaas cyclone : Cyclone Yaas is the 2nd cyclonic storm of 2021, it enters Odisha and West Bengal on 26th May 2021. It developed in the Andaman Sea and classified as a Very Severe Cyclonic Storm (VSCS).
As per India Meteorological Department (IMD), low pressure will form over North Andaman Sea on 22nd May 2021 cyclonic storm and lay centered Odisha and West Bengal on 26th May 2021.
The name of Yaas cyclone was given by Oman.
Cyclone Tauktae is the first cyclonic storm of 2021, hit southern Gujarat on 17 May 2021. It developed in the Arabian Sea and classified as a Very Severe Cyclonic Storm (VSCS).
The name Tauktae cyclone was given by Myanmar.
As per India Meteorological Department, Cyclone Tauktae weakened into a cyclonic storm and lay centered at 11:30 a.m. over Saurashtra, about 165 km southwest of Ahmedabad, Gujarat. It is expected to weaken gradually into a deep depression in the next six hours.
All names of the cyclone are given below in Table.
List of Name of the cyclone in the Northern Indian Ocean (Effective from 2020)
The naming of the cyclones over the north Indian Ocean given by 13 countries from 2020 after Amphan starting with Nisarga, then Gati, Nivar, Burevi, Tauktae etc
Name of the cyclone in different Countries:
in the Indian Ocean
in the Caribbean Islands
Eastern and Central North Pacific
Western Northern Pacific
in the China Sea
in northwest Australia
in the coastal US
in Mississippi vally, USA
List of the name of cyclones in the world
North Atlantic Eastern Pacific
United States National Hurricane Center
United States Central Pacific Hurricane Center.
Japan Meteorological Agency
North Indian Ocean
India Meteorological Department
South-West Indian Ocean
Meteo France Reunion
Indonesian Agency for Meteorology Climatology and Geophysics (BMKG),
Papua New Guinea National Weather Service,
Australian Bureau of Meteorology
Fiji Meteorological Service Meteorological Service of New Zealand
Name of the Tropical cyclone:
Northern Indian Ocean (45°E-100°E) Names – In the Arabian Sea and the Bay of Bengal:
Cyclone rising in the North Indian Ocean is named through the Indian Meteorological Department (IMD) is an agency of the Ministry of Earth Sciences of the Government of India and 8 Member countries pannel.
Now 5 countries joined as member panel. The headquarters of IMD in Delhi and Regional offices are at Mumbai, Kolkata, Nagpur, and Pune.
The naming of the tropical cyclones over the north Indian Ocean commenced from September 2004, with names provided by eight Members (India, Pakistan, Sri Lanka, Bangladesh, Maldives, Myanmar, Oman, and Thailand).
Since 2004 on the initiative of India started the process of giving the name to cyclonic storms in the Indian Ocean region by 8 countries (India, Pakistan, Sri Lanka, Bangladesh, Maldives, Myanmar, Oman, and Thailand).
Now 5 countries joined as member pannel. From 2020 after Amphan cyclone, names are provided by Thirteen (13) Countries. These are Bangladesh, India, Iran, Maldives,Myanmar, Oman, Pakistan, Qatar, Saudi Arabia, Sri Lanka, Thailand, U.A.E., and Yemen
List of Name of the cyclone in Northern Indian Ocean (From 2004–2020):
Important GK & Current Affairs are:-
Q.Who gave the name of Cyclone Tauktae?
Ans-The name Cyclone Tauktae was given by Myanmar country.
Q.Who gave the name of Cyclone Amphan ?
Ans-The name Cyclone Amphan was given by Thailand country.
Q.What is a Cyclone?
Ans-A cyclone is a rotating of winds anti-clockwise in the Northern Hemisphere around a low-pressure center area seas and oceans. The swirling air rises and cools, creating clouds and precipitation.
Q. How the Cyclones are named? Who gives cyclones names?
Ans-Cyclones are named through the Indian Meteorological Department (IMD) by 8 8 pannel member countries (India, Pakistan, Sri Lanka, Bangladesh, Maldives, Myanmar, Oman, and Thailand).
Q. Who gave the name of Yaas cyclone
Ans-The name of Yaas cyclone was given by Oman.