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WMO strengthens Flash Flood Guidance system
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20th October 2021

WMO strengthens Flash Flood Guidance system

The acclaimed Flash Flood Guidance System with Global Coverage (FFGS/WGC) has been put on a more sustainable footing after a decision by the Extraordinary World Meteorological Congress.

The new Sustainability Strategy sets out a vision and approach for the future development and implementation of FFGS in order to save lives and livelihoods. It was approved by the Extraordinary World Meteorological Congress after receiving endorsement from the Hydrological Assembly.

Flash floods are among the world’s deadliest natural disasters with more than 5,000 lives lost annually and huge social, economic and environmental impacts. Accounting for approximately 85% of flooding cases, flash floods also have a higher mortality rate than riverine and coastal floods. 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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