A report this week from AOL.com put numbers to what Central Florida residents already felt stepping outside: heat index readings climbing well above 110°F, with the National Weather Service issuing heat advisories across the region. A heat advisory is not the worst category — that's a heat warning — but it marks the threshold where prolonged exposure starts producing heat exhaustion in healthy adults within hours.

The problem for Florida households is not the heat itself. It's the compounding factors that turn a bad heat stretch into a household emergency.

What's actually happening

Florida's humidity does most of the damage. A 95°F air temperature reads as 110°F+ on the heat index when relative humidity sits above 60%, which is a routine summer baseline in Orlando, Tampa, and the surrounding counties. The body cools through sweat evaporation. When the air is already saturated, that mechanism stalls.

The second factor: Florida's power grid takes its hardest hit during sustained heat events. FPL and Duke Energy Florida have both documented demand spikes during multi-day heat stretches. Outages tend to cluster in older neighborhoods with aging distribution infrastructure — which describes a significant share of Central Florida's residential stock. Lose power during a heat advisory and you have, at most, a few hours before indoor temperatures in a closed Florida home become medically dangerous for elderly residents, infants, and anyone on diuretics or beta-blockers.

The third factor most households miss: heat advisories don't require a disaster declaration to hurt you. FEMA doesn't show up. There is no shelter-in-place broadcast. You are just hot, possibly without power, and making decisions in a cognitively impaired state because heat degrades judgment before it produces visible symptoms.

What we'd actually do

Identify your household's most heat-vulnerable person and build your plan around them. This is the most important sentence in this article. Elderly adults, children under four, anyone on blood pressure medication, and anyone doing outdoor labor are not on the same risk curve as a healthy 35-year-old. If your household includes someone in those categories, the rest of these actions are not optional.

Florida has a network of designated cooling centers — most counties activate them during heat advisories. Orange County, Hillsborough County, and Miami-Dade all maintain updated lists through their emergency management websites. Find the nearest one to your home and your workplace before you need it. This takes ten minutes.

Service your AC unit this week, not next month. A clogged filter or low refrigerant charge reduces efficiency by 15-25% — recent Department of Energy guidance is consistent on this range. An overworked system is more likely to fail during peak demand hours, which in Florida typically fall between 3 p.m. and 7 p.m. A basic tune-up from a licensed HVAC technician runs $80-$150 in most Florida markets. A window unit replacement during a heat emergency, if you can even find one in stock, costs three to five times that.

Buy a corded electric fan and a box of large zip-close bags before the next advisory. This is the $30 version of a backup cooling plan. Wet a towel, drape it over yourself, and point the fan at it — evaporative cooling works even in humid air when airflow is high enough. The zip-close bags: fill them with ice from a convenience store and place them on pulse points (wrists, neck, inner thighs) to drop core temperature fast if someone is showing heat exhaustion symptoms. This is what Florida's emergency medical protocols recommend for field stabilization.

Know the difference between heat exhaustion and heat stroke before you need to. Heat exhaustion: heavy sweating, weakness, cold or pale skin, fast but weak pulse, nausea. Move the person to a cool location, apply wet cloths, give water if conscious. Heat stroke: hot, red, dry skin; rapid strong pulse; possible unconsciousness. This is a 911 call. Do not attempt to manage heat stroke at home.

The bigger picture

Heat is Florida's most statistically consistent weather killer — more lethal in most years than hurricanes. The Florida Department of Health tracks heat-related emergency department visits and has published data showing that the majority of heat deaths occur in residential settings without working air conditioning. That's not a freak event. That's a household infrastructure failure.

The goal of preparedness isn't to survive catastrophe. It's to keep a bad week from becoming a medical emergency. A working AC, a cooling center address saved in your phone, and a $30 fan-and-ice kit cover the realistic risk for most Florida families. Start there.