Structural Wind Risk
CRITICAL
91 / 100
Gusts 42 mph vs 38 mph limit
Lightning Proximity
DANGER
85 / 100
Strike radius: 6.5 mi (Stand-down active)
Precipitation & Traction
ELEVATED
62 / 100
0.45 in/hr downpour rate
Thermal Index (WBGT)
MODERATE
44 / 100
Heat Index: 92°F (Humid)
Structural Safety & Operational Threshold Checks
Derived from ANSI/ESTA E1.21 & OSHA 1926
Temporary Truss & Audio Line Arrays
FAIL (EXCEEDED)
Permitted: 38 mph | Current Peak: 42 mph
Open-Air Vehicle Traction & Electrical Safety
HIGH RISK
High-voltage ungrounded exposure during active downpour & lightning proximity.
NFPA 780 Lightning 30/30 Safety Radius
HALT CROWD OPS
Required buffer: 8.0 miles | Observed strike: 6.5 miles
Egress Ground Slip & Turf Saturation
RESTRICTED
Rain rate of 0.45 in/hr creates rapid hydroplaning hazard on temporary track surfacing.