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IRI@AGU: Improving Long-Range Tropical Cyclone Forecasts

Chia-Ying Lee is an associate research scientist at the International Research Institute for Climate and Society. She studies tropical cyclones, including their structure and the intensity evolution, as well as their prediction at the weather, sub-seasonal scales, and long-term risk assessment. At the annual meeting of the American Geophysical Union next week, Lee will present her work on understanding the factors […]

IRI Data Library Hosts New Experimental Forecasts

Two new extended-range weather forecast databases are now more accessible to public and researchers Wouldn’t it be nice to know now what the weather is going to be for the vacation you have planned next month? Or, if you’re a farmer, whether you’re going to get enough rainfall during a crucial planting time coming up […]

IRI Unveils Its New Generation of Climate Forecasts

Leer en castellano This spring, IRI implemented a new methodology for our seasonal temperature and precipitation forecasts around the world. We asked Simon Mason, Andrew Robertson and Tony Barnston, three of our senior climate scientists who lead the development and tailoring of IRI’s forecasts, to answer some fundamental questions about the new forecast. If you […]

New paper highlights applications for subseasonal forecasts

A recent study was the first to comprehensively review the potential applications of subseasonal-to-seasonal (S2S) forecasts, and several affiliates of IRI were co-authors. Andrew Robertson, one of the IRI co-authors, said the paper provides a substantial overview of the progress achieved in S2S — i.e. forecasts issued with two-week to two-month lead times — over the […]

Seasonal Climate Forecasts

Overview Starting in April 2017, the IRI probabilistic seasonal climate forecast product is based on a re-calibration of model output from the U.S. National Oceanographic and Atmospheric Administration (NOAA)’s North American Multi-Model Ensemble Project (NMME). This includes the  ensemble seasonal prediction systems of NOAA’s National Centers for Environmental Prediction, Environment and Climate Change Canada, NOAA/Geophysical Fluid […]

IRI Forecasts

October 20, 2016 You’ve reached the location of the archived Forecasts page.  These pages have been removed either because they are no longer supported, they point to old versions of our archived website, or they are proprietary content not intended for redistribution. Most of these materials have been relocated or developed into new products.  Please visit our […]