PWS-22; WMO/TD No. 1560:
This document provides guidelines on international collaboration in the warning process for severe weather threats and extreme conditions (heat wave, cold wave, drought, storm surge, avalanches, flooding.) It discusses general principles regarding cross-border exchange of warnings, and includes the role of the media in raising the public’s expectations, focus on public safety, threshold criteria and the scope of cooperation. It also presents examples from different parts of the world to illustrate the factors to be considered in developing international or cross-border collaborations in the warning process for cyclones, earthquakes, tsunamis, and storm surge. It offers a number of observations and suggestions for consideration by countries that may wish to set up bilateral, regional or international collaboration in the framework of establishing internationally effective systems of warnings.
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