WWA analyses of extreme weather events

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

Using the following criteria we can decide which extreme weather events are candidates for a rapid, near real-time analysis by the partner organisations:

  • 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 that is in principle capable of describing the event.

Cold spells

Unusual cold spells can occur even in a warming world, and cause disruption to transport, energy & food supplies.

Drought

Drought affects people in many ways, from reduced water & food supplies to increasing the risk of wildfires.

Extreme rainfall

Rainfall events from a major storm or hurricane, or intense localised downpours can lead to flooding in any type of location.

Heatwave

Heatwaves can be particularly dangerous to humans, and occur all over the world with increasing intensity.

Storms

Storms usually include heavy rain, snow or hail, strong winds and thunder & lightning.

Wildfire

Warmer temperatures are increasing the likelihood of wildfires both starting and spreading in many regions of the world.