Heatwaves and Health: Guidance on Warning-System Development
The impacts of heatwaves can be great and sometimes catastrophic, as manifested by the large number of heat-related deaths recorded across Europe in July and August 2003, and the Russian Federation in July and August 2010. While the effects of heat may be exacerbated in cities, due to the urban heat island (UHI) effect, the livelihoods and social well- being of non-urban communities can also be severely disrupted during and after periods of unusually hot weather.
This Guidance has been developed jointly by WMO and WHO to outline for practitioners in both NMHSs and National Health Services (NHSs) the issues surrounding the general heat–health problem and present how an understanding of the biometeorology, epidemiology, public-health and risk-communication aspects of heat as a hazard can be used to inform the development of an HHWS as part of a wider HHAP. The Guidance places emphasis on the practical aspects of HHWSs at a generic level and is not intended to be prescriptive.
The Guidance has been produced to have global applicability. It has drawn on expert opinion and the acquired experience of a wide range of people and institutions involved in the development of warning systems and heat plans.
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