Low Pressure Over BoB To Become Depression: Very Heavy Rainfall over Odisha, Andhra Pradesh, Telangana

Key Takeaways:

• The Bay of Bengal low-pressure area is likely to become a depression tomorrow and a deep depression a day later.
• The system has the potential to intensify into a cyclone before approaching the North Andhra Pradesh–South Odisha coastline.
• South Odisha and North Andhra Pradesh face the threat of very heavy rainfall, with Telangana at risk of extremely heavy rain after the system moves inland.
• Intense weather between 23rd and 27th September may subsequently affect Vidarbha, East Madhya Pradesh, East Uttar Pradesh, Bihar, Jharkhand and Chhattisgarh.
• Forecast Validity: Next 5 to 7 days.

The low-pressure area now lies over the east-central and adjoining west-central Bay of Bengal. The cyclonic circulation is extending beyond 25,000 feet, tilting southward with height. The system is likely to become a depression tomorrow and strengthen further into a deep depression a day later. The weather system seems to be a borderline case between a deep depression and a tropical storm as it approaches the coastline of North Andhra Pradesh and South Odisha on 23rd September 2026. Very heavy rainfall is expected over Andhra Pradesh, Odisha and Telangana.

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Sea surface temperatures are fairly high under the area of influence and are, therefore, favourable for further intensification. The wind field and other environmental conditions are also aligned and support the strengthening of the low-pressure area. The weather system does have the potential to become a cyclone before crossing the coast. More clarity on its concentration is likely after 24 hours, when it becomes a depression over the west-central Bay of Bengal. The outer peripheries of the cloud bands have reached the coastline, and scattered rains accompanied by moderately strong winds are likely today. The clouds will become thick and expansive along the coast, covering Andhra Pradesh and Odisha.

It is a little early to predict its landfall status and timing, but it is expected to strike the coastline the day after tomorrow. Precise details will be available after the system becomes a depression and picks up speed. Intense weather activity is likely between 23rd and 27th September 2026. Once it crosses the coast, the state of Telangana will fall in the firing range for extremely heavy rainfall. South Odisha and North Andhra Pradesh may have a deluge before the rain belt shifts inland. Places at risk of heavy rainfall will include Vidarbha, East Madhya Pradesh, East Uttar Pradesh, Bihar, Jharkhand and Chhattisgarh. The weather activity will occur in a staggered manner over these parts. Exercise caution as continuous torrential rains may cause localised flooding and disrupt normal life.