Tamil Nadu Rain Alert: Chennai, Chengalpattu and 14 Other Districts May Receive Rain

The India Meteorological Department (IMD) has forecast rainfall across 16 districts of Tamil Nadu over the next three hours, including Chennai, Chengalpattu and Tiruvallur. The alert comes after overnight rain brought heavy downpours to Chennai and its surrounding areas.

The northeast monsoon, which reportedly began on October 16, has brought widespread rainfall to several parts of the state.

Rain Alert for 16 Districts

According to the report, moderate rainfall is likely in Chennai, Tiruvallur, Chengalpattu and Kancheepuram over the next three hours.

Rain is also possible in the following districts:

- Villupuram

- Cuddalore

- Mayiladuthurai

- Nagapattinam

- Tiruvarur

- Thanjavur

- Pudukkottai

- Ramanathapuram

- Thoothukudi

- Tirunelveli

- Kanniyakumari

Rainfall is also expected in Puducherry and Karaikal.

More Than 100 mm of Rain Recorded in Several Areas

Overnight showers affected Chennai and its suburban areas, with several locations recording more than 100 mm of rainfall by 3:30 AM on October 21, according to the report.

The highest rainfall totals listed were:

Commuters Advised to Plan Their Journeys

Continued rainfall may affect morning traffic and travel, particularly in areas experiencing heavy showers or waterlogging. Commuters are advised to allow extra travel time and check local traffic updates before leaving home.

Residents in low-lying areas should remain cautious during periods of intense rainfall and follow official weather advisories. The report also notes that rain may continue across parts of Tamil Nadu beyond October 21.

For the latest district-wise alerts, residents should refer to official updates from the India Meteorological Department.