N.A. Drought Forecasts

The International Research Institute for Climate and Society produce forecast maps for the Standardized Precipitation Index, persistence maps of SPI and a historical analysis tool for SPI for southern North America.  Access these tools through the links on the right or below (images are generic) or interact with the forecasts through the Map Viewer.

 

Image of probability of SPI9 being less than -1.0 at 3 month lead

Legend for proability of SPI9 being less than -1.0 at 3 month lead