Special Measurement Gauges Heat

As part of its equine health and safety protocols, the Maryland Jockey Club is using a special measurement to gauge when summer heat becomes dangerous.
MJC Acting President Mike Rogers explained the company uses a protocol called the WetBulb Globe Temperature (WBGT) measurement, which takes into account temperature, humidity, wind speed, sun angle and cloud cover to determine potential heat stress. It is different than the heat index, which takes into consideration temperature and humidity including for shady areas.
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