Addressing Precipitation Prediction Grand Challenge (PPGC)

Addressing Precipitation Prediction Grand Challenge (PPGC)

Addressing Precipitation Prediction Grand Challenge (PPGC) 478 269 Ocean Decade

Lead institution:

National Oceanic and Atmospheric Administration (NOAA) – United States of America (USA)

The impacts from extreme precipitation are deadly, damaging, and increasing in a warming climate. Knowing when it will rain and how much will fall is crucial to every person and business across the globe.

The strategic goal of the PPGC Ocean Observation and Science Project is to provide dramatically more accurate, reliable, and timely precipitation forecasts for society. This is accomplished through:

  1. Better understanding of the ocean – atmosphere interface and atmospheric teleconnections
  2. More and better observations of the ocean and atmosphere over oceans, and
  3. The development, improvement  and application of a fully coupled Earth System prediction model

Particular focus is placed on better observing, understanding, and modeling of the tropical Pacific and Caribbean, where Small Island Developing States benefit from improved short term forecasts, and downstream North American and European nations benefit from improved medium range to sub-seasonal precipitation predictions. These advances in precipitation prediction can be integrated into early warning systems.

View the full Precipitation Prediction Grand Challenge Strategy here on

Start Date: 01/01/2023
End Date: 31/12/2030

Lead Contact: Dave Novak, Director of National Ocean and Atmospheric Administration’s Weather Prediction Center (

challenges: 5- Ocean-Climate Nexus
ocean_basins: Arctic Ocean, North Atlantic Ocean, North Pacific Ocean, South Pacific Ocean
type_of_action: Contribution


The Science We Need for the Ocean We Want





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