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Note: The ForDRI data and maps are updated every Tuesday at 3:30 p.m. Central time.

About ForDRI


The Forest Drought Response Index (ForDRI) is a new combined indicator tool to monitor forest drought conditions1. The ForDRI presents a weekly depiction of drought-related forest stress across the continental U.S. ForDRI was developed by the National Drought Mitigation Center (NDMC) at the University of Nebraska-Lincoln (UNL) in collaboration with the U.S. Department of Agriculture (USDA), U.S. Forest Service (USFS), and Center for Advanced Land Management Information Technologies (CALMIT) at UNL.

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