CYCLONE HAMOON (Syllabus: GS Paper 3 – Disaster Management)

News-CRUX-10     25th October 2023        
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Context: Recently, Cyclone 'Hamoon' intensified into a 'severe cyclonic storm' just a day after forming over the Bay of Bengal, according to the India Meteorological Department (IMD).

  • According to The Weather Channel, Cyclone Hamoon is currently in a deep depression over the west-central Bay of Bengal. It is expected to intensify during the next 12 hours and move northwards.
  • A cyclonic disturbance is called a depression if the associated sustained maximum wind speed at surface level is 17-27 knots, wherein a knot is equal to 1.86 kilometres per hour.

Cyclone Hamoon

  • About: It is a cyclone in the Bay of Bengal region.
  • The system will move nearly north-eastward and cross the Bangladesh coast between Khepupara and Chattogram.
  • Areas Affected: Paradip (Odisha), Digha (West Bengal), Manipur, Mizoram, Tripura, south Assam, Meghalaya and Khepupara (Bangladesh).

Favourable Conditions for Tropical Cyclone Formation

  • Large sea surface with temperature higher than 27°C.
  • Presence of the Coriolis force is enough to create a cyclonic vortex.
  • Small variations in the vertical wind speed.
  • A pre-existing weak low-pressure area or low-level-cyclonic circulation.
  • Upper divergence above the sea level system.