TNPSC Thervupettagam

Flash flood hotspots across India

August 3 , 2025 4 days 58 0
  • A new study has identified flash flood-prone areas mainly in the Himalayas, the West Coast and Central India.
  • The Extremely vulnerable sub-basins are located in the Brahmaputra, Narmada, Tapi, Mahanadi, Brahmani and West Coast River basins.
  • High-risk areas are also found in parts of the Godavari, Ganga, Mahi and Indus River basins.
  • The Flash floods usually occur within four to six hours of intense rainfall and are often caused by cloudbursts in hilly regions.
  • The Main causes include saturated soil, sudden release of water from dams and fast surface runoff due to urban development.
  • The Flash Flood Guidance System, which has been operational since 2020, much provides early warnings up to twenty-four hours in advance.

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