Impact-based Forecasting

COMET participates in a variety of activities to facilitate the implementation of the impact-based forecasting techniques outlined in WMO-1150: Guidelines on Multi-hazard Impact-based Forecast and Warning Services. This process, which focuses on helping forecasters deliver more effective forecasts and warnings to stakeholders, is being implemented worldwide.


For impact forecast and warning services, exposure is explicitly considered along with the hazard and vulnerability

These types of forecasts and warnings are designed to provide detailed information precisely on who or what is exposed

To provide these warnings, NMHSs must have detailed vulnerability and exposure information relevant to the hazard and entities for whom the forecasts are provided

NMHSs must also develop strong partnerships with other relevant agencies or with user communities

These services relay a message of greater relevance to enable those at risk to take appropriate actions in order to mitigate the adverse effects of weather hazards


Common situational awareness

Procedures for disaster preparedness and response

More informed risk assessment

Better contingency plans

Improved plans for a variety of scenarios

Provide training on impact-based forecasting techniques

Deliver potential impact of forecast weather

Improve products and services for decision-making