The Regional Meteorological Centre (RMC), Chennai, has issued an important weather update concerning the formation of a low-pressure area in the southwest Bay of Bengal. Initially predicted to form on November 11, this low-pressure system is now expected to develop within the next 24 hours.
The northeast monsoon season, which began on October 15 this year, has already brought significant rainfall to various districts across Tamil Nadu. As the season progresses, this newly anticipated weather system in the Bay of Bengal could further intensify rainfall activity in the region.
According to the Indian Meteorological Department (IMD), the low-pressure area forming in the southwest Bay of Bengal is likely to move westward towards the coastal areas of Tamil Nadu and Sri Lanka in the next two days. Additionally, the cyclonic circulation over this part of the Bay is expected to persist in the same location, contributing to ongoing weather changes.
Due to the formation and movement of this low-pressure system, moderate rainfall is forecasted across Tamil Nadu up until November 15. The IMD’s bulletin advises residents and local authorities to remain alert and take necessary precautions during this period.
The meteorological department has specifically warned of heavy rains in isolated areas of Thanjavur, Tiruvarur, Nagapattinam, Mayiladuthurai, Pudukkottai, Kanniyakumari, and Karaikal, with the possibility of light to moderate showers in parts of Tamil Nadu, including the state capital, Chennai. These districts, particularly in the southern and coastal regions, are expected to experience significant rainfall as the monsoon progresses.
According to a weather blogger, the delay in the onset of active monsoon rainfall can be attributed to a low-pressure area forming off the coast of Sri Lanka. This low-pressure system has been impacting the regional weather pattern, causing a temporary reduction in rainfall across most of Tamil Nadu.
From November 11 to November 18, the state can expect widespread, active monsoon showers, with some areas likely to experience heavy rains. The northeastern districts along the coast, including Chennai, are likely to receive moderate rainfall, while areas further inland, such as the delta districts and parts of southern Tamil Nadu, may experience heavy showers due to the influence of the low-pressure system.
The active monsoon conditions are expected to continue, with the potential for localized flooding and disruption in some areas. The RMC has advised residents, especially in flood-prone districts, to remain alert and prepared for the possible impact of heavy rains.
As the monsoon intensifies, agricultural activities, particularly in the delta regions, may be impacted due to the excessive rainfall. Farmers, particularly in districts like Thanjavur, Tiruvarur, and Nagapattinam, which are known for their agricultural output, will need to closely monitor the weather to safeguard crops from waterlogging and potential damage caused by strong winds and heavy rainfall.
In urban areas, including Chennai, the rains are expected to bring cooler temperatures, providing some relief from the heat. However, the monsoon showers are likely to cause traffic disruptions and waterlogging in low-lying areas, potentially leading to delays in daily commuting. City residents are advised to plan their travel accordingly.