Stadium Microclimate
Controls
Skelly Field at H.A. Chapman Stadium • Tulsa, OK
Radiant Ground Inversion Model
CATEGORY 3 ALERT
Chest/Head Air (5 ft):
98.0°F
FieldTurf Surface (Cleat Contact)
Radiant ground thermal conduction into player footwear
149.4°F
NCAA WBGT Index
89.2°F
Category 3 (High / Orange)
Hydration Sweat Loss
2.35 L/hr
Estimated fluid deficit per active starter
Turf Heat Premium
+51.4°F
Surface temp divergence above air temp
Q4 Sprint Velocity Loss
8.4%
Cumulative thermal & snap fatigue delta
4-Quarter Stamina & Sprint Degradation
Assumes 65 total offensive/defensive snaps
NCAA Heat Protocol
ORANGE TIER
Category 3 (High / Orange)
WBGT Range: 87.0°F – 89.9°F
- Mandatory 4 cooling hydration breaks per hour (minimum 4 min duration each).
- Remove shoulder pads & helmets during extended media timeouts.
- Cold-water immersion tubs (ice baths) pre-staged on both team sidelines.
- Rehydrate 16-24 oz chilled fluid every 15 minutes of play.
Staff Gameday Brief
Sports Science Context: Crumb-rubber synthetic infill absorbs up to 90% of solar radiation. On 98°F days in Oklahoma, turf surfaces routinely hit 145°F–160°F, severely impairing footwear integrity and exacerbating heat-illness susceptibility.