The IRI was formed in late 1996 with the aim of fostering the improvement, production, and use of global forecasts of seasonal to interannual climate variability for the explicit benefit of society.The occurrence of the 1997/98 strong El Nino provided an ideal impetus to IRI's prediction division to begin generating seasonal climate forecasts on an real-time basis. Learn more...

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Forecasts Produced by the IRI 

IRI Seasonal Climate Forecasts

• Global and Regional Seasonal Climate Forecast Maps (Maps, More Background)
• Probability Forecasts for User-Selected Precipitation Amounts (Forecasts, More Background)
• Forecasts in Context of Recent Observations (Forecasts, More Background) 
• North America Monsoon Experiment (NAME) Forecast Maps (Forecasts, More Background) 

Numerical Climate Prediction Tools

• Individual AGCM Predictions (Predictions, More Background)
• Multi-Model Ensemble Predictions (Predictions, More Background)
• Individual AGCM Current & Historical Ensemble Distributions (Distributions, More Background)

Probabilistic ENSO Forecasts (Forecasts, More Background)
Sea Surface Temperature (SST) Forecasts (Forecasts, More Background)
Experimental Tropical Cyclone Activity Forecasts (Forecasts, More Background)

For downloadable software tools, see the Tools page.