What Is The Heat Index Pdf 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". these values are for shady locations only. exposure to full sunshine can increase heat index values by up to 15°f. also, strong winds,. Figure 1. heat index chart. in order to determine the heat index using the chart above, you need to know the air temperature and the relative humidity. for example, if the air temperature is 100°f and the relative humidity is 55%, the heat index will be 124°f. when the relative humidity is low, the apparent temperature can actually be lower.
Heat Index Heat Index Chart Take it easy. avoid over exer on especially between the hours of 11 am and 6 pm. take breaks at least hourly in the shade or in an air condi oned loca on. stay out of the sun and stay in a cooled building as much as possible. use a fan only when the windows are open or when the air condi oner is on. Heat index chart temperature (ef) relative humidity (%) 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 40 80 81 83 85 88 91 94 97 101 105 109 114 119 124 130 136 45 80 82 84 87 89 93 96 100 104 109 114 119 124 130 137 50 81 83 85 88 91 95 99 103 108 113 118 124 131 137 55 81 84 86 89 93 97 101 106 112 117 124 130 137. Heat. ex010 20the ‘heat index’ is a measure of how the hot weather "feels" t. the body. this table uses relative humidity and air temperature to produce the "apparent temperature" or the temperature the bo. y "feels". these values are for shady loca. ions only. exposure to full sunshine can increase heat index values by u. They feel. the "heat index" is a single value that takes both temperature and humidity into account. the higher the heat index, the hotter the weather feels, since sweat does not readily evaporate and cool the skin. the heat index is a better measure than air temperature alone for estimating the risk to workers from environmental heat sources.
What Is The Heat Index Heat. ex010 20the ‘heat index’ is a measure of how the hot weather "feels" t. the body. this table uses relative humidity and air temperature to produce the "apparent temperature" or the temperature the bo. y "feels". these values are for shady loca. ions only. exposure to full sunshine can increase heat index values by u. They feel. the "heat index" is a single value that takes both temperature and humidity into account. the higher the heat index, the hotter the weather feels, since sweat does not readily evaporate and cool the skin. the heat index is a better measure than air temperature alone for estimating the risk to workers from environmental heat sources. The heat index is based on work by r.g. steadman and published in 1979 under the title "the assessment of sultriness, parts 1 and 2." in this work, steadman constructed a table which uses relative humidity and dry bulb temperature to produce the "apparent temperature" or the temperature the body "feels". we use this table to provide you with. Heat index: 105 129 degrees f health effect: sunstroke, heat cramps and heat exhaustion are likely. heat stroke is possible with prolonged exposure and or physical activity recommendations: avoid strenuous outdoor activity; stay indoors in an air conditioned facility; stay well hydrated. drink 10 gulps every 20 minutes. heat index: 90 104.
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