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Partner Webinar: The Hot-Dry-Windy Index (HDWI)
“The Hot-Dry-Windy-Index: Background, History, and Application to Fire Weather Forecasting in the Lake States and Northeast United States”
When:Â February 25th, 2026, 2:00-3:00 p.m. ET
Hosted by:Â North Atlantic Fire Science Exchange
Presenters:Â Dr. Jay Charney, USDA Forest Service Northern Research Station
Description: Atmospheric conditions can have a wide range of impacts on wildfire and prescribed fire. The key is recognizing when atmospheric conditions are such that management of the fire on the landscape could be difficult or nearly impossible to perform. This webinar will revisit and showcase the Hot-Dry-Windy Index, a tool developed to assist both meteorologists and fire operations in recognizing adverse atmosphere conditions that could have an impact. Dr. Jay Charney will provide relevant background information related to the tool, how to utilize it, and share examples that highlight its value for operations.​