Evaporative Demand Drought Index

CPC now provides the Evaporative Demand Drought Index (EDDI), an experimental drought monitoring and early warning guidance tool transitioned from the NOAA Physical Sciences Laboratory (PSL). It examines how anomalous the atmospheric evaporative demand (also known as "the thirst of the atmosphere") is for a given location and across a time period of interest.

Click the button below to view EDDI current conditions maps, timeseries, image and data archives, and additional resources on CPC's new website.

NOTE: The new CPC website is still under active development, so non-EDDI features, links, and pages maybe be broken or unavailable.