Guests headed to Walt Disney World on July 9 should prepare for dangerously high heat, with the heat index forecast to approach 110 degrees Fahrenheit across the resort's theme parks.

Heat index values that high — a combination of actual air temperature and humidity — can pose serious health risks, particularly for young children, older adults, and anyone spending extended time outdoors in direct sun. Conditions like these are not unusual for a Central Florida summer, but forecasters are flagging this day as especially intense.

Visitors planning to be in the parks are encouraged to stay hydrated, take regular breaks in air-conditioned spaces, wear lightweight and light-colored clothing, and apply sunscreen frequently. Disney's parks offer a number of shaded and indoor attractions that can provide relief during peak afternoon hours.

Checking in with your travel party throughout the day and recognizing early signs of heat exhaustion — such as heavy sweating, dizziness, or nausea — can make a meaningful difference in staying safe. If symptoms of heat stroke appear, seek medical attention immediately; Disney's parks have first-aid stations throughout each property.

This heat advisory was reported by WDWMAGIC.