Heat index explained
It usually feels hotter than what the thermometer reads
Weather Explained: Understanding the heat index
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How common is Houston's dangerous heat, what is driving the triple digits?
![](https://www.osha.gov/sites/default/files/inline-images/heat_illnesscampaign_shtp.jpg)
Heat - Overview: Working in Outdoor and Indoor Heat Environments
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An advanced empirical model for quantifying the impact of heat and climate change on human physical work capacity
![](https://do0bihdskp9dy.cloudfront.net/06-28-2023/t_3a441cbc45c44e91ab8ee02c1c36be98_name_file_1280x720_2000_v3_1_.jpg)
The different types of heat alerts
![](https://www.iweathernet.com/wxnetcms/wp-content/uploads/2015/07/heat-index-using-dew-point.png)
Heat Index Calculator & Charts – iWeatherNet
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The heat index explained in90 seconds - BBC News
![](https://climate.nasa.gov/system/internal_resources/details/original/2532_Figure_33_03_04.png)
Too Hot to Handle: How Climate Change May Make Some Places Too Hot to Live – Climate Change: Vital Signs of the Planet
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What is the heat index? Here's what it means
![](https://www.epa.gov/system/files/images/2022-07/heat-waves_figure1_2022.png)
Climate Change Indicators: Heat Waves
![](https://images.foxweather.com/static.foxweather.com/www.foxweather.com/content/uploads/2021/11/668/376/Dev-Wind-Chill-Chart.png?ve=1&tl=1)
What is the 'feels-like' temperature?
![](https://www.weather.gov/images/safety/heatindexchart-650.jpg)
What is the heat index?