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The heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. This has important considerations for the human body's comfort.
- Heat Forecast Tools
The Heat Index is a measure of how hot it really feels when...
- Heat Forecast Tools
The heat index (HI) is an index that combines air temperature and relative humidity, in shaded areas, to posit a human-perceived equivalent temperature, as how hot it would feel if the humidity were some other value in the shade. For example, when the temperature is 32 °C (90 °F) with 70% relative humidity, the heat index is 41 °C (106 °F ...
20 Σεπ 2023 · The chart shows the Heat Index - how hot it feels - as 109°F (43°C), which is in the orange range for DANGER. Remember, these values are in the SHADE. You can add up to 15°F (8°C) to these values if you are in direct sunlight.
The ‘Heat Index’ is a measure of how hot weather "feels" to the body. This table uses relative humidity and air temperature to produce the "apparent temperature" or the temperature the body "feels".
27 Ιουν 2023 · The heat index is a measure of how hot it really feels outside, when humidity and other factors are considered along with the temperature, according to Kimberly McMahon, a...
The Heat Index is a measure of how hot it really feels when relative humidity is factored in with the actual air temperature. To find the Heat Index temperature, look at the Heat Index Chart above or check our Heat Index Calculator.
12 Μαΐ 2022 · The Heat Index Equation. The computation of the heat index is a refinement of a result obtained by multiple regression analysis carried out by Lans P. Rothfusz and described in a 1990 National Weather Service (NWS) Technical Attachment (SR 90-23). The regression equation of Rothfusz is.
