Misc

IMD launches cyclone warning system

The Indian Meteorological Department has announced that it will release a ‘dynamic’ and an ‘impact-based’ cyclone warning system, which is expected to help in reducing the demographic, economic, and property loss and damage. Indian coasts on the east and the west are quite prone to recurring cyclones, which cause immense human and property loss. Storms during October to December, especially in the Bay of Bengal, ravage the eastern coast and damage property.
 
Upon reviewing its preparedness, the IMD announced
·It will use meteorological data in combination with geospatial and population data to assess the impact of the cyclone in a particular area.  
·The new system will give specific warnings. For instance, if a district is to be hit by winds up to 160 kmph, it will warn about the kind of infrastructure that is likely to be damaged and these can be mapped. 
·By making use of extensive cartographic, geological and hydraulic data of the particular district, local population, infrastructure, land use and property will be prepared and disseminated. 
 
On the other hand, NDMA has also taken up the ‘National Cyclone Risk Mitigation Project’ to form a Web-based Dynamic Composite Risk Atlas (Web-DCRA) in association with IMD and the government. Currently, cyclone warnings are provided from the Area Cyclone Warning Centres (ACWCs) at Calcutta, Chennai and Mumbai and Cyclone Warning Centres (CWCs) at Bhubaneswar, Visakhapatnam and Ahmedabad.
 
Warning is issued to states in 4 stages:
·Pre-Cyclone watch issued 72 hours in advance - contains early warnings about development of a cyclonic disturbance.
·Cyclone alert issued at least 48 hours in advance - contains information on the location and intensity of storm.
·Cyclone warning issued at least 24 hours in advance - the expected commencement of adverse weather over coastal areas.
·Post landfall outlook is issued at least 12 hours in advance of expected time of landfall

 




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