The India Meteorological Department (IMD) has announced that the low-pressure area over the southwest Bay of Bengal and adjoining equatorial Indian Ocean is expected to intensify into a deep depression within the next 24 hours.
The system, which was observed on February 17, 2026, near the equatorial Indian Ocean, has moved west-northwestwards and remains over the same region as of 8:30 AM on February 18, 2026. Meteorologists predict further strengthening as it continues its movement in the west-northwest direction.
Tamil Nadu Weather Forecast (February 18–22)
February 18 & 19
Dry weather likely across Tamil Nadu, Puducherry, and Karaikal.
February 20
Light to moderate rainfall expected at isolated places over:
- South Tamil Nadu
- Coastal Tamil Nadu
- Puducherry and Karaikal
- Other interior districts likely to experience dry conditions.
Mist Warning for North Tamil Nadu
On February 19 and 20, light mist is likely during early morning hours in isolated areas of north Tamil Nadu districts.
Temperature Outlook
From February 18 to 22, no significant change in maximum temperatures is expected across Tamil Nadu, Puducherry, and Karaikal regions.
Residents are advised to monitor official IMD bulletins for the latest updates on the Bay of Bengal weather system.