Highlights

The cyclone Burevi hits the Karaikal coast of Tamil Nadu seven days after cyclone Nivar. This is the third cyclone formed within the last 10 days in the Bay of Bengal and Arabian Sea put together. The Deep Depression over the southeast and adjoining southwest Bay of Bengal has been intensified into a cyclonic storm. The cyclone named ‘Burevi’ by the Maldives.

Points To Note

  • India Meteorological Department has highlighted that the cyclonic system is currently centred at about 400 kilometer east-southeast of Trincomalee in Sri Lanka.
  • The cyclone will cross the Sri Lankan coast near Trincomalee by 2nd December.
  • Cyclone will emerge into the Gulf of Mannar (between southeastern India and western Sri Lanka) and its adjoining Comorin area.
  • Cyclone will also cross the shores between Pamban and Kanyakumari in southern part of Tamil Nadu.
  • Tamil Nadu state, Kanyakumari, Tirunelveli, Thoothukudi, Tenkasi, Ramanathapuram and Sivagangai districts will get heavy to very heavy rainfall at a few places.

Tropical Cyclone

It is an intense circular storm and It originates over the warm tropical oceans. The cyclone is characterized by low atmospheric pressure, high winds and heavy rain. The characteristic feature of tropical cyclones is the eye which is the central region of clear skies, warm temperatures and low atmospheric pressure. These storms rotate anticlockwise in the northern hemisphere while clockwise in the southern hemisphere. These storms have different names in different regions:

  1. Typhoons in South East Asia and China
  2. Hurricanes in the North Atlantic and eastern Pacific
  3. Willy-willies in north-western Australia.
  4. Tropical cyclones in southwest Pacific and Indian Ocean region

How Cyclones are developed?

During th formation of Cyclone, Water takes up heat from the atmosphere before the cloud formation and  change into a vapour. When this water vapour converts back into liquid form as raindrops, heat is released to the atmosphere. This heat warms the surrounding air and then the air rises and cause a drop in pressure. As a result of this, more air comes towards  the centre of the storm and the cycle is repeated.

Other Cyclones

Cyclone Nisarga

The Cyclone made its landfall in Maharashtra in June year 2020. The name was suggested by Bangladesh Meteorological Department (BMD). Cyclone Nisarga was a severe cyclonic storm and the strongest tropical cyclone that struck Maharashtra since 1891.

Cyclone Amphaan

Cyclone Amphaan was named by (Thailand) Thai Meteorological Department. Amphaan made landfall between Sagar Islands of West Bengal and Hatiya Islands of Bangladesh. The Amphaan affected Indian states Odisha, West Bengal and Bangladesh. Cyclone Amphaan was the second pre monsoon cyclone to form in the Bay of Bengal after Fani.

Cyclone Fani

This Cyclone hit the eastern coast of India in May 2019. Fani created four new mouth in Chilika Lake. Before the cyclone hit the coast of Odisha, the Chilika Lake had only two active mouths. Mouths of the lake are the points where it meets the sea. The mouths were formed due to the wave energy. Due to the opening of new mouth in the lake a lot of marine waters are entering the Lake and is increasing the salinity of Chilika Lagoon (Lagoon in Odisha). Chilika Lake has brackish water, that is, mixture of fresh and saline water.

Fani was the longest lived cyclone in the Bay of Bengal ever observed. The Cyclone stayed in the sea for 11 days before it made a landfall. Cyclonic Storm Burevi Cyclonic Storm Burevi