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Extreme danger: When the heat index is 125 degrees or higher, heat stroke is likely. Heat Index calculator. Here's a chart to help you find out what the heat index is. You can also use this heat ...
A generalized view of the heat index showing how the perception of heat by the human body increases with temperature but more rapidly at higher humidity levels. The heat index of a given combination of temperature and humidity is defined as the dry-bulb temperature which would feel the same if the water vapor pressure were 1.6 kPa. Quoting ...
A heat index of 103 or greater is considered dangerous, based on the National Weather Service heat index chart. The peak heat index forecast for the Rochester area will be 103 degrees on Wednesday ...
A heat advisory is issued within 12 hours of the onset of extremely dangerous heat conditions. The general rule of thumb for this advisory is when the maximum heat index temperature is expected to ...
The heat index explains why humidity makes a difference. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. For premium ...
The humidex (short for humidity index) is an index number used by Canadian meteorologists to describe how hot the weather feels to the average person, by combining the effect of heat and humidity. The term humidex was coined in 1965. [ 1 ]
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The wet-bulb globe temperature (WBGT) is a measure of environmental heat as it affects humans. Unlike a simple temperature measurement, WBGT accounts for all four major environmental heat factors: air temperature, humidity, radiant heat (from sunlight or sources such as furnaces), and air movement (wind or ventilation). [1]