The following Wet Bulb Globe Temperature recommendations are specifically for outdoor practices. All charted information below is based on recommendations by the UIL (University Interscholastic League) for 2024-2025.
Texas is divided into Class 2 and 3 zones, with each zone providing specific recommendations to adjust activity levels and keep athletes safe. The chart above outlines the activity guidelines relative to both zones. Here’s what the UIL has mandated:
We recently hosted a webinar breaking down the UIL heat and wet bulb globe temperature (WBGT) recommendations. Watch now for game-changing tips and practical advice for your school.
For athletic trainers and directors prioritizing athlete safety, Perry Weather offers precise on-site wet bulb globe temperature monitoring.
Guide your coaches and staff in taking the right actions with hyper-local WBGT monitoring and alerts tailored to your heat stress policies.
Automatic instructive alerts and warnings that are triggered based on your policies, keeping you compliant and confident in your decision-making so everyone on your staff knows exactly what to do when WBGT levels are high.
Get heat and WBGT risk updates based on your policies, so you’re not caught by surprise and are able to adjust outdoor activities accordingly.
The WBGT is a comprehensive measure that combines air temperature, relative humidity, radiant heat, and air movement to assess heat stress conditions. Read more about WBGT here.
Wet bulb globe temperature in a nutshell is a more in-depth heat stress measurement taking into account more of the environment (Direct sunlight, water vapor capacity, cloud coverage, etc.). Read more about the differences between WBGT and the heat index here.
There are two main ways heat illness can strike:
1. Classic Heat Illness: This is caused by your environment’s impact on your body’s ability to cool down. Think high temperatures, humidity, direct sun, and no breeze.
2. Exertional Heat Illness (EHI): This one focuses on your own internal heat production. It can happen even in mild weather if you push yourself too hard.
Wet bulb globe temperature involves measuring three temperatures: dry bulb, wet bulb, and globe. Read more here.
Imagine heat stress as a warning light on your body’s dashboard. If heat stress isn’t addressed, it can progress to heat illness. This is a medical emergency where the body can no longer cool itself down effectively. It can be life-threatening if not treated promptly. Read more here.
To measure WBGT, use a scientifically approved WBGT meter. The best way to measure it is by using Perry Weather’s advanced weather monitoring platform.
The following guidelines are based on recommendations by the UIL.
Activities must be postponed or suspended if signs of a thunderstorm are imminent before or during an activity or contest. Here’s what to do if a thunderstorm is imminent:
The following protocols are set by the UIL Lightning Safety Recommendations. Postpone or suspend activity if a thunderstorm appears imminent before or during an event, even without visible lightning or audible thunder, until the hazard has passed. Warning signs include darkening clouds, high winds, thunder, or lightning.
Perry Weather’s lightning detection and alerts system gives you clear, actionable instructions aligned with your lightning safety policies.
Know exactly when it’s safe to step out after a lightning strike with Perry Weather’s lightning countdown timers.
Get custom PA alerts and audible alarms with our lightning warning system.
A safe shelter is any frequently inhabited building with four solid walls (not a dugout), electrical and telephone wiring, and plumbing, which aid in grounding the structure.
Yes. Lightning victims do not carry a residual electrical charge. However, prioritize checking for injuries and call emergency services immediately.
Responsibilities may vary, but typically coaches, athletic trainers, and officials share the responsibility for monitoring weather conditions and enforcing safety procedures.
Some policies allow for designated “safe havens” under sturdy structures like bleachers (away from metal supports) or inside enclosed vehicles with the windows rolled up. However, this is a last resort.
There are two cold-related conditions that coaches, administrators and athletes should be aware of: hypothermia and frostbite.
Watch how schools across the country are using Perry Weather to comply with state weather policies and keep their campuses safe.
Take Perry Weather for a test drive with a two-week free trial. Get started today!
