IMD declares monsoon onset over South Bay of Bengal, South Andaman Sea

By | May 13, 2025

The India Meteorological Department (IMD) has officially declared the onset of the monsoon over the South Bay of Bengal and the South Andaman Sea, marking a significant milestone in the annual monsoon season for India. This development brings an early arrival of the southwest monsoon in the southern regions, a crucial phase that influences weather patterns across the country.

Key Highlights:

  • Monsoon Onset: The onset of the southwest monsoon is a vital meteorological event for the subcontinent, as it governs the rainfall distribution, agriculture, and water resources across the country.
  • Affected Regions: The announcement of the monsoon’s arrival in the South Bay of Bengal and South Andaman Sea means that the rain-bearing clouds have begun to spread over key coastal areas. This is expected to bring rain to the southern states, especially Tamil Nadu, Kerala, Andhra Pradesh, and the Andaman and Nicobar Islands.
  • Implications for Agriculture: The timely onset of the monsoon is critical for the agricultural sector, particularly for the kharif crops like rice, maize, and pulses, which rely on the seasonal rains. Farmers will be keeping a close watch on the progression of the monsoon across the country to plan their sowing.
  • Weather Forecast: The IMD has also issued weather warnings for various regions that are likely to experience heavy rainfall in the coming days. While the southern states will witness the first bursts of rain, the monsoon is expected to gradually move northwards in the coming weeks.

Impact on Daily Life:

  • Flooding Risks: With the heavy rains expected, there is an increased risk of flooding in low-lying areas, particularly along the coasts and in urban centers with inadequate drainage systems.
  • Transportation: Heavy rainfall and gusty winds can affect transportation networks, especially in coastal regions. Airlines and maritime services may face disruptions, while road travel might become challenging in flood-prone areas.
  • Health Considerations: The monsoon season also brings concerns about waterborne diseases and the spread of infections. Public health systems in affected areas will need to be on alert to address potential outbreaks.

Conclusion:

The onset of the monsoon in the South Bay of Bengal and South Andaman Sea signals the beginning of a transformative weather phase for India. It’s a time of hope for farmers and a period of caution for the general public, as the monsoon has a broad impact on the environment, economy, and daily life. As the season progresses, the IMD will continue to monitor its development closely, offering updates and weather advisories to help mitigate the challenges posed by the rains.