Regional Meteorological Centre Chennai

REGIONAL METEOROLOGICAL CENTRE at CHENNAI was started on 1 April 1945 to supervise and coordinate meteorological services in the Southern Region, which now covers the states of Tamilnadu, Andhra Pradesh, Karnataka, Kerala and Union Territories of Pondicherry and Lakshadweep.

                  RMC Chennai  Doppler Weather Radar


  • Under the technical and administrative control of the Regional Meteorological Centre, Chennai three Meteorological centres function at Hyderabad, Bangalore and Thiruvananthapuram to render meteorological services in their respective states.

  • Area Cyclone warning centre at RMC Chennai supervises and coordinates the non-aviation forecasting work at Meteorological centres.   

  • Cyclone warning services are rendered through Area Cyclone Warning Centre, Chennai and Cyclone Warning Centre, Visakhapatnam.   

  • Meteorological Office at Chennai Airport (Minambakkam) controls and coordinates the aviation weather forecasting activities of the region.   

  • Cyclone Detection Radars located at Chennai, Machilipatnam, Visakhapatnam, Karaikal and Kochi track Tropical Cyclones over the Bay of Bengal and the Arabian Sea with their S-band 10 cm radars . The S-Band Radar at Chennai has been replaced with a Doppler Weather Radar recently. 

  • High Resolution Picture Transmission (HRPT) direct readout ground station was established at RMC Chennai during June 1995. This receives AVHRR satellite imageries and TOVS data from polar orbiting NOAA Satellites.   

  • RMC Chennai also houses the Cyclone Warning Dissemination System (CWDS) unit from where the cyclone warning bulletins are disseminated to remote centres in coastal districts.   

  • Conventional Seismological Observatories are functioning at Thiruvananthapuram, Visakhapatnam, Vijayawada, Minicoy and Salem under this RMC. Seismological observatories under Global Seismological Network (GSN) were established at Chennai, Thiruvananthapuram and Visakhapatnam during 1997. An observatory under World Wide Standardised Seismological Network (WWSSN) is functioning at Kodaikanal. A broad Band System is functioning at Mangalore.

  • Meteorological observations collected over a number of years form the basis of Climatology. Climatological data have wide applications and are utilized for planning large-scale national development projects.  Climatological sections at Regional Meteorological Centre and other meteorological centres in the region organise the scrutiny and archival of meteorological data and use them for answering various weather related enquiries.   

  • Accuracy of meteorological observations is ensured by periodical inspections of observatories by the inspectorate section at Regional Meteorological Centre and other Meteorological Centres. Calibrations of all instruments at observatories are checked at least once in two years.   

  • The state governments, Railways and other organisations, maintain more than 2000 rainguage stations. Periodical inspections of these rainguage stations are arranged through hydrology sections at RMC Chennai and other MCs.   

  • A training unit to cater the Basic Meteorological Training course was started at RMC Chennai during 1984.  More than 1000 trainees in about 50 batches of four months duration each have already been trained so far.   

  • Agromet Advisory Units have started functioning at RMC Chennai and other MCs from 1978. These units are regularly issuing Agromet Advisory Bulletins twice a week for the benefit of the farming community in their respective states.   

  • RMC Chennai maintains 121 surface observatories (53 departmental and 68 part-time), 13 pilot balloon observatories, 10 Radiosonde/Rawin stations and 1 radiosonde station. 

  • Port Meteorological offices at Chennai, Kochi and Visakhapatnam liaison with masters of ships and shipping companies and other marine interests. 

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