Heat exhaustion is strongly related to the heat index, which is a measurement of how hot you feel when the effects of relative humidity and air temperature are combined. A relative humidity of 60% or more hampers sweat evaporation, which hinders your body's ability to cool itself.
Statistics (2015) Jacksonville International Airport (IATA: JAX, ICAO: KJAX, FAA LID: JAX) is a civil-military public airport 13 miles (21 km) north of downtown Jacksonville, in Duval County, Florida. It is owned and operated by the Jacksonville Aviation Authority.
Orlando International Airport. For the other international airport serving the Orlando area, see Orlando Sanford International Airport. Orlando International Airport (IATA: MCO, ICAO: KMCO, FAA LID: MCO) is a major public airport located six miles southeast of Orlando, Florida, United States. It is the second-busiest airport in the state of Florida, as over 40.2 million passengers were handled at the airport as of 2015.