Source: National Weather Service - weather.gov
Heat Indexes take into factors other that temperature that influence the affect of heat on your body. They include things like:
See Heat Index
- Direct sunlight vs shade
- Wind or airflow inside
During a Heat Wave | NWS
- Stay hydrated (You can drink too much water see Hydration)
- Limit Strenuous Outdoor Activities
- Avoid direct sun
- Wear a broad brimmed hat
- Slow down: reduce, eliminate or reschedule strenuous activities until the coolest time of the day. Children, seniors and anyone with health problems should stay in the coolest available place, not necessarily indoors.
- Dress for summer. Wear lightweight, loose fitting, light-colored clothing to reflect heat and sunlight.
- Eat light, cool, easy-to-digest foods such as fruit or salads. If you pack food, put it in a cooler or carry an ice pack. Don't leave it sitting in the sun. Meats and dairy products can spoil quickly in hot weather.
- Drink plenty of water (not very cold), non-alcoholic and decaffeinated fluids, even if you don't feel thirsty. If you on a fluid restrictive diet or have a problem with fluid retention, consult a physician before increasing consumption of fluids.
- Use air conditioners or spend time in air-conditioned locations such as malls and libraries.
- Use portable electric fans to exhaust hot air from rooms or draw in cooler air.
- Do not direct the flow of portable electric fans toward yourself when room temperature is hotter than 90¡F. The dry blowing air will dehydrate you faster, endangering your health.
- Minimize direct exposure to the sun. Sunburn reduces your body's ability to dissipate heat.
- Take a cool bath or shower.
- Do not take salt tablets unless specified by a physician.
- Check on older, sick, or frail people who may need help responding to the heat. Each year, dozens of children and untold numbers of pets left in parked vehicles die from hyperthermia. Keep your children, disabled adults, and pets safe during tumultuous heat waves.
- Don't leave valuable electronic equipment, such as cell phones and gps units, sitting in hot cars.
- Make sure rooms are well vented if you are using volatile chemicals.
- For more heat health tips, go to the Centers for Disease Control and Prevention
Warning Signs and Symptoms of Heat-Related Illness | Natural Disasters and Severe Weather | CDC
Overhydration: Types, Symptoms, and Treatments
last updated 18 May 2019