heat index


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heat index

Public health A measure of the effect of combined elements–heat & humidity–on the body. See Heat-related death.
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Although both tables give heat index values based on air temperature and moisture, the two tables are based on two different measures of air moisture--relative humidity and dew point temperature--and the two tables cover different ranges of possible weather.
In June of 2012, OSHA launched the Heat Safety Tool app for smart phones that calculates the Heat Index and reports the level of heat-related illness risk for a given environment.
Scientists, mostly but not exclusively from the US, consider such aspects as the physiological basis of temperature regulation in domestic animals, effects of environment on metabolism, the impact of hot environments on nutrient requirements, prospects for improving fertility during heat stress by increasing embryonic resistance to elevated temperature, rethinking heat index tools for livestock, and responses of poultry to environmental challenges.
Now, the heat index does the same for summertime, adding humidity to heat to describe how slowly a human body will be able to cool itself.
Iraq suffers from an acute shortage of electricity in an environment where the heat index can exceed 50 centigrade, and cut off electricity totaling upwards of 18 hours per day in most of Iraqi provinces.
In partnership with the National Oceanic and Atmospheric Administration (NOAA), OSHA is developing a heat index smart phone application that will display the NOAA heat index at the users location with action alerts on how to prevent heat illness on the job.
Michigan, Illinois, Texas and across the Mid-Atlantic up through the Northeast, high temperatures and humidity are pushing the heat index well above 37C (100F).
If the forecasted heat index continues through this week, more cycling events are possible for the same group of customers.
The heat index chart below shows heat and humidity combinations that can pose hazards to health.
Meanwhile, USA Today's annual Celebrity Heat Index has suggested Britney to be the hottest human being on Planet Earth, all thanks to the exposure she got through internet and print reports.
Even when actual temperatures level off, the heat index -- or how hot it will actually feel -- will likely remain above 100 degrees through Thursday as increasing moisture makes the human body feel hot, Hoffer added.
Exercising when it's about 80 is fine, but also consider the heat index and humidity levels.