IMD Maintains 154 Meteorological Stations Across Tamil Nadu

IMD operates 35 manual observatories, 56 AWS, 87 ARGs, and 11 Agro-AWS across Tamil Nadu and Pondicherry.
Perambalur constituency has one AWS at Perambalur town and two ARGs at Chettikulam and Veppanthattai.
All districts receive bi-weekly agro-meteorological advisories under Gramin Krishi Mausam Sewa program.
Five Doppler Weather Radars cover Tamil Nadu including locations at Chennai, Karaikal, Kalpakkam, and Sriharikota.