Flash floods are among the world’s deadliest natural disasters with more than 5 000 lives lost annually. Their social, economic and environmental impacts are significant. Accounting for approximately 85% of flooding cases, flash floods also have the highest mortality rate among different classes of flooding, including riverine and coastal. Flash floods differ from river floods in their short time scales and occurrence on small spatial scales, which makes flash flood forecasting a different challenge from large-river flood forecasting.
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The ASEAN Climate Outlook Forum (ASEANCOF) has issued its seasonal forecast for June-July-August 2021 for Southeast Asia, taking into account the end of the La Niña event and the Indian Ocean Dipole (IOD), which is currently neutral though may become negative.
The World Meteorological Organization (WMO) Regional Association for Asia (RAII) has held a virtual session with a focus on how to improve service delivery, disaster risk reduction, and climate resilience.
A five-day World Meteorological Organization (WMO) Workshop on Impact-Based Forecast and Warning Services (IBFWS) was organized in Vietnam. The training workshop is funded through the Climate Risk Early Warning System (CREWS) fund for the South East Asia and Pacific Small Islands States. The Workshop was organized by WMO in collaboration with Viet Nam Meteorological and Hydrological Administration (VNMHA) and with the participation of the United Nations Economic and Social Commission for Asia and the Pacific (UNESCAP).
Back-to-back tropical cyclones have caused massive destruction and impacted millions of people in Central America and parts of Southeast Asia, underlining once again the threats posed by tropical cyclones to life and property and socio-economic well-being and the need for the global level coordination and cooperation under the umbrella of WMO.