Explained Cyclone Tauktae Cyclone Tauktae

Cyclone Tauktae (pronounced Tau-Te) is a tropical cyclone, classified as a very severe cyclonic storm, which developed in the Arabian Sea.

Path followed by Tauktae It made its landfall in Gujarat and ravaged the coastal states of Kerala, Karnataka, Goa and Maharashtra along its path.

Cyclone Yaas

Another low-pressure system is brewing over the Bay of Bengal and is set to intensify into a powerful cyclone and the storm is expected to make landfall by May 26.

What are Tropical Cyclones?

• These are extremely low pressure areas which form over Seas / Oceans due to warming of the surface water. • They indicate an anti clockwise movement of winds in the Northern Hemisphere and clockwise movement of winds in Southern Hemisphere. • They are known as Cyclones in the Indian Ocean, Hurricanes in the Atlantic, Typhoons in the Western Pacific and South China Sea, Willy Willies in Australia.

Conditions for the formation :

• Large sea surface with temperature higher than 27° C • Presence of a strong Coriolis Force • A pre-existing weak low-pressure area

Development of Cyclone

Intensification of Cyclones

Extreme Low Pressure

Release of Latent Heat Release of Latent Heat

Rising up of Air Column

Structure of a Cyclone

Landfall and weakening of Cyclone

• When the eye of the cyclone hits the land, it is said to have made landfall. A cyclone starts dissipating or weakening after making landfall

Coastal flooding

Storm Surges • Storm surge is an abnormal rise of water generated by a storm, over and above the predicted tides.

Classification (Intensity) Sustained winds Category (3-min average) ≥120 kt Super Cyclonic Strom ≥221 Km/h Extremely Severe 90-119 kt Cyclonic Strom 166-220 km/h 64-89 kt Very Severe Cyclonic Storm 118-165 km/h 48-63 kt Severe Cyclonic Storm 89-117 km/h 34-47 kt Cyclonic Storm 63-88 km/h 28-33 kt Deep Depression 51-62 km/h 17-27 kt Depression 31-50 km/h

Naming of Cyclones  Regional Specialised Meteorological Centres (RSMC)  Tropical Cyclone Warning Centres (TCWC)

RSMCs ACROSS THE WORLD

WMO/ESCAP Column 1 Column 2 Panel Member Countries Name Pron’ Name Pron’ Bangladesh Nisarga Nisarga Biparjoy Biporjoy India Gati Gati Tej Tej Iran Nivar Nivar Hamoon Hamoon Maldives Burevi Burevi Midhili Midhili Myanmar Tauktae Tau’Te Michaung Migjaum Oman Yaas Yass Remal Re-Mal Pakistan Gulab Gul-Aab Asna As-Na Qatar Shaheen Shaheen Dana Dana Saudi Arabia Jawad Jowad Feinjal Feinjal Sri Lanka Asani Asani Shakhti Shakhti Thailand Sitrang Si-Trang Montha Mon-Tha United Arab Emirates Mandous Man-Dous Senyar Sen-yaar Yemen Mocha Mokha Ditwah Ditwah

Frequency of Cyclones

• Climate change and global warming is leading to warming of sea surface at an unprecedented rate leading to increasing frequency of cyclones in Northern Indian Ocean.