Accuracy Assessment of Experimental Wet Bulb Globe Temperature Forecasts Across North Carolina and the Continental United States

Accuracy Assessment of Experimental Wet Bulb Globe Temperature Forecasts Across North Carolina and the Continental United States 1920 1080 Klimo Insights

Abstract

Wet bulb globe temperature (WBGT) is a heat stress index that accounts for the effects of air temperature, humidity, wind speed, and solar radiation on body temperature. WBGT is the recommended method for assessing and managing workplace heat stress by the United States Occupational Safety and Health Administration (OSHA, 2017), and it is recommended outside the United States for occupational environments by the International Organization for Standardization (ISO, 2017). In addition, WBGT is increasingly used in high school athletics for modifying practice times and activities based on WBGT values, such as in the states of Georgia (Grundstein et al., 2015) and North Carolina (NCHSAA, 2016).

In the summer of 2019, the NOAA Southeast Regional Climate Center (SERCC) and the Carolinas Integrated Sciences and Assessments (CISA), one of eleven NOAA RISA program teams, developed a web-based WBGT forecast tool for the states of North Carolina and Virginia. Around the same time, the United States National Weather Service (NWS) added an experimental WBGT forecast to their gridded National Digital Forecast Database (NDFD). The SERCC/CISA forecast tool and the NWS experimental forecast, however, utilize different methods for estimating WBGT. In this paper, we describe these methods and assess their accuracy.

Full Publication

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Originally published by Carolinas Integrated Sciences and Assessments.

FEATURED AUTHOR

Jordan Clark, PhD

Jordan is the Co-Founder and Chief Climatologist of Klimo Insights.