WWA applies a unique scientific approach that combines observational data, analysis of a range of models, peer-reviewed research, and on-the-ground reports.

WWA uses the following criteria to decide which extreme weather events are candidates for a rapid, near real-time analysis by the partner organizations.

  • The event has major impacts on people

  • Enough usable data is available to understand what happened in terms of the meteorology in order to define the event, and there’s enough historical observations to put the event in context.

  • There is output of a model in principle capable of describing the event.

  • Researchers on the team are available and have the time for an analysis.

Kenya Drought (2016)

Somalia Drought (2016-2017)

U.S. Heat (February 2017)

Australia Heat (February 2017)

North Pole (Nov – Dec, 2016)

Chennai Floods (December 2015)

Louisiana Downpours (August 2016)

Great Barrier Reef (March 2016)

European Rainstorms (May 2016)

UK’s Storm Desmond (Dec. 2015)

Hottest Year on Record (Dec. 2015)

European Heat Wave (Summer 2015)

Western Drought (ongoing)

Southeast Brazil Drought (2015)

Record European Heat (2014)