Tamil Nadu is bracing for another storm

#GS3 #ENVIRONMENT #DISASTERS #GS1 #GEOGRAPHY

The Bay of Bengal will see its second Severe Cyclone of the year, after Super Cyclone Amphan formed in May.

Tamil Nadu and Puducherry on ‘red’ alert

  • After cyclone Gaja in 2018, this will be the second cyclone to cross Tamil Nadu in the last two years.
  • Once intensified, it would acquire its name ‘Nivar’.
  • At this stage, the wind speed will range between 70 to 80 km/hr gusting to 90km/hr.
  • The cyclone will further gain strength into a Severe Cyclone category (90 to 100 km/hr gusting to 110 km/hr).
  • The maximum hazard due to this cyclone will be caused to Tamil Nadu. 
  • In association with development of the severe cyclonic storm, sea conditions in the west-southwest regions of the Bay of Bengal have turned rough to extremely rough and remain at its most unfavourable condition.
  • With extremely heavy rain — of the order of 20cm or more, the IMD has placed Tamil Nadu under ‘red’ (take action) alert. Northern districts, here, could experience rainfall more than 24 cm on the day.
  • Heavy rain (64 to 115mm) is also forecast over Rayalaseema, Telangana, coastal Andhra Pradesh, Tamil Nadu, Puducherry, Karaikal and south interior Karnataka during November 24-26.
  • At the time of the cyclone crossing over to the land, storm surge with tidal waves up to one metre in height above the astronomical tide. 
  • This could lead to inundation of low-lying areas. Most of the storm surge would be experienced along the coastal areas between Puducherry and Chennai.
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