IMD Issues Cyclone Watch and Heavy Rain Warnings for Coastal Andhra Pradesh and South Peninsula

The India Meteorological Department has issued severe rain warnings across the South Peninsula as a low-pressure system over the Bay of Bengal is expected to intensify into a cyclonic storm by Monday morning. Coastal Andhra Pradesh, Tamil Nadu, and neighboring regions are bracing for heavy to extremely heavy rainfall over the coming days.

IMD Issues Severe Weather Warnings

Coastal Andhra Pradesh is under a cyclone watch as the India Meteorological Department (IMD) warns of isolated, extremely heavy rainfall of 20 cm or more on Monday and Tuesday. The brewing weather system stems from a well-marked low-pressure area over the east-central Bay of Bengal, which is expected to develop into a depression, deepen into a deep depression, and potentially graduate into a cyclonic storm named Arnab by Monday morning.

Impact Across the South Peninsula

The adverse weather conditions extend beyond the prospective storm's direct path. Tamil Nadu, Puducherry, and Karaikal are forecasted to receive isolated very heavy rain ranging between 11 to 20 cm from Saturday through Monday. Meanwhile, a counterpart low-pressure system over the southeast Arabian Sea and adjoining Lakshadweep is working in tandem to maintain wet weather conditions across both sides of the peninsula.

Additional rainfall is expected in Kerala and Mahe, which face isolated very heavy rain over the weekend followed by heavy rain on Monday. Lakshadweep is slated for very heavy rain on Saturday, with South Interior Karnataka anticipating heavy rainfall on the same day. Coastal Andhra Pradesh, Yanam, and Telangana are projected to experience further heavy rain on Thursday.

System Tracking and Intensification Factors

As of Saturday morning, the center of the system lay approximately 663 km southeast of Brahmapur in Odisha, 775 km east-southeast of Visakhapatnam, 1,097 km east-northeast of Nellore, and 1,118 km northeast of Chennai. Projections cited from Google DeepMind indicate a high probability of the system reaching significant intensity, though exact landfall location and timing remain uncertain.

Meteorological assessments point to exceptionally warm sea-surface temperatures of around 30°C beneath the developing system, acting as a primary energy source. However, further intensification will depend on environmental factors such as vertical wind shear and the system's pace of lateral movement. Cooler waters nearer the Andhra Pradesh coast and steering currents will ultimately dictate the storm's trajectory and impact.

"Severe weather disruptions and cyclonic events present immediate operational and supply chain challenges for businesses operating in coastal regions. While meteorological forecasts help companies prepare contingency plans, business leaders must closely monitor official updates from agencies like the IMD to safeguard regional infrastructure, logistics, and personnel against unexpected disruptions." — Dr. Shishir Gupta, Founder & CEO, StartupLanes