The University Interscholastic League, the governing body for Texas high school athletics, has announced a new requirement that all football teams monitor environmental conditions during practice using Wet Bulb Globe Temperature, or WBGT.
Heat‑Safety Protocol Takes Effect
WBGT combines temperature, humidity, wind speed and solar radiation into a single index that reflects how hot it feels to the human body.
When the index climbs above 82 degrees, the league mandates a series of adjustments: mandatory water breaks, reduced equipment, and in some cases, postponement of practice until conditions improve.
Schools that lack indoor facilities face the toughest scheduling challenges. Without a climate‑controlled space, they must shift practices to the early morning or late evening, when temperatures are naturally lower.
Health experts have long warned about the risk of exertional heat stroke, a leading cause of sudden death among athletes. The American College of Sports Medicine and the National Athletic Trainers’ Association both endorse WBGT as the most reliable metric for preventing such tragedies.
The UIL trusts coaches to apply the guidelines on the ground, but violations can be reported to local and state executive committees, ensuring accountability.
Texas now joins 19 other states that have adopted similar WBGT protocols for high school sports, marking a growing consensus on the need for science‑based heat safety.
While the policy promises to protect players, it also brings logistical and financial strain. Schools must invest in temperature‑monitoring equipment, train staff on WBGT interpretation, and possibly modify field surfaces to improve shade.
As the first summer under the new rule approaches, districts across the state are already adjusting practice schedules, with some districts in Dallas and Wichita Falls planning to start sessions before sunrise.