There is a version of an Orlando summer that tourists expect. Hot, yes. Humid, absolutely. The kind of heat that hits you the moment you step off the plane and reminds you that Florida does not do anything halfway. But there is also a version of Orlando summer that catches even seasoned visitors completely off guard, and that is the version Central Florida is currently living through. This summer has been relentless in a way that goes beyond the usual Florida heat warnings. Massive thunderstorms have rolled through the region with wind gusts strong enough to stop attractions in their tracks. Dangerous lightning has sent crowds scrambling for cover mid-afternoon. High waves have churned up the water parks and resort pools. And now, for the second day in a row, a Heat Advisory has been issued for Orange and Osceola counties, home to Walt Disney World and Universal Orlando Resort. If you are visiting the parks right now or have a trip coming up, this is not the summer to show up unprepared.Central Florida has always had a reputation for dramatic afternoon thunderstorms, and most experienced Disney visitors know to build those into their park day plans. But what is happening this week is a different kind of challenge altogether. The region is in the grip of a multi-day heat event that meteorologists have flagged as genuinely dangerous, and the advisory issued for Friday, July 10 is the second consecutive day the National Weather Service has felt the need to formally warn residents and visitors about conditions across the area.Credit: Inside the MagicWhat the Advisory CoversThe Heat Advisory on Friday is in effect from 11 a.m. to 8 p.m. EDT across Orange and Osceola counties, as well as Indian River, Martin, Saint Lucie, Volusia, Brevard, Lake, Okeechobee, and Seminole counties. Heat index values, the feels-like temperature that accounts for humidity, are expected to reach up to 110 degrees Fahrenheit. That is not the air temperature. That is what your body actually experiences standing outside in the Florida summer sun.Thursday’s advisory brought similar conditions, and the heat has been compounded by additional atmospheric factors that made yesterday particularly brutal. A massive Saharan dust plume arrived in Florida earlier this week, bringing dry air that suppressed the region’s typical afternoon thunderstorms and pushed air quality into a range that is especially concerning for anyone with respiratory conditions like asthma or COPD. The dust traveling across the Atlantic carries microscopic particles that can cause eye irritation, coughing, and throat discomfort even in otherwise healthy adults. While Friday is expected to bring showers and lightning back into the forecast alongside the heat, with wind gusts of 40 to 55 miles per hour and heavy rainfall possible, that combination of storms and extreme heat creates its own set of challenges for anyone spending the day outdoors.Friday has another heat advisory beginning at 11 a.m. and ending at 8 p.m. https://t.co/CvcbV8wNDo— Orlando Sentinel (@orlandosentinel) July 10, 2026 Why Theme Parks Make Heat More DangerousWalt Disney World and Universal Orlando are essentially massive urban heat islands. Miles of asphalt, concrete pathways, and large crowds trap and radiate heat in ways that push the temperature guests actually feel well above whatever the official reading is at the nearest weather station. Standing in an outdoor queue at Magic Kingdom or EPCOT during a heat index of 110 degrees means your body is working significantly harder than it would during a normal summer day, and the cumulative toll of a full park day under those conditions adds up fast.Heat exhaustion is the most immediate risk, and it can sneak up on people who are too focused on hitting the next ride to notice the warning signs. Heavy sweating, weakness, nausea, and lightheadedness are all signals that the body is struggling. Left unaddressed, heat exhaustion can escalate into heat stroke, which is a life-threatening medical emergency. Children and elderly guests are particularly vulnerable, and anyone with underlying health conditions should be especially cautious this weekend.Credit: Inside The MagicHow to Stay Safe at the Parks Right NowThe National Weather Service recommends drinking plenty of fluids before you feel thirsty, wearing lightweight and loose-fitting clothing, staying out of direct sun during peak hours, and retreating to air-conditioned spaces regularly throughout the day. At Disney World, indoor attractions like Pirates of the Caribbean, the Haunted Mansion, Soarin’ Around the World, and any of the resort’s air-conditioned shows are your best friends during the afternoon heat window.Credit: Inside the MagicPack a refillable water bottle, bring a small handheld fan, wear sunscreen and reapply it throughout the day, and if you have a rain jacket for the afternoon storms, keep it accessible. The weather pattern this week in Orlando is not something to push through without a plan. Rope drop to park close is not the move right now. Early mornings, indoor breaks from 11 to 4, and a flexible itinerary will make the difference between a great trip and a miserable one.The magic is still there. You just need to respect what the Florida summer is doing right now to get to it safely.The post Day Two of Extreme Heat at Disney World, and It Is Getting Dangerous appeared first on Inside the Magic.