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City of Santa Ana Emergency Operations Plan <br />Part I Basic Plan <br />Figure 59 Heat Index <br />Relative Humidity (%) <br />5 <br />10 <br />15 <br />20 <br />25 <br />30 <br />35 <br />40 <br />45 <br />50 <br />55 <br />60 <br />65 <br />70 75 80 <br />85 90 95 100 <br />80 <br />77 <br />78 <br />78 <br />79 <br />79 <br />79 <br />80 <br />80 <br />80 <br />8-1 <br />8-1 <br />82 <br />82 <br />83 84 84 <br />85 86 86 87 <br />81 <br />78 <br />79 <br />79 <br />79 <br />79 <br />80 <br />80 <br />81 <br />81 <br />82 <br />82 <br />83 <br />84 <br />85 86 86 <br />87 88 90 911 <br />82 <br />79 <br />79 <br />80 <br />80 <br />80 <br />80 <br />81 <br />81 <br />82 <br />83 <br />84 <br />84 <br />85 <br />86 88 89 <br />90 91 93 95J <br />83 <br />79 <br />80 <br />80 <br />81 <br />81 <br />81 <br />82 <br />82 <br />83 <br />84 <br />85 <br />86 <br />87 <br />88 90 91 <br />93 95 97 99 <br />84 <br />80 <br />81 <br />81 <br />81 <br />82 <br />82 <br />83 <br />83 <br />84 <br />85 <br />86 <br />88 <br />89 <br />90 92 94 <br />96 98 100 '103 <br />85 <br />81 <br />81 <br />82 <br />82 <br />82 <br />83 <br />84 <br />84 <br />85 <br />86 <br />88 <br />89 <br />91 <br />93 95 97 <br />99 102 '104 107 <br />86 <br />81 <br />82 <br />83 <br />83 <br />83 <br />84 <br />85 <br />85 <br />87 <br />88 <br />89 <br />91 <br />93 <br />95 97 '100 <br />102 105 '108 112 <br />87 <br />82 <br />83 <br />83 <br />84 <br />84 <br />85 <br />86 <br />87 <br />88 <br />89 <br />91 <br />93 <br />95 <br />98 '100 103 <br />'106 '109 113 -1'16 <br />88 <br />83 <br />84 <br />84 <br />85 <br />85 <br />86 <br />87 <br />88 <br />89 <br />91 <br />93 <br />95 <br />98 <br />100 '103 106 <br />110 113 117 121 <br />89 <br />84 <br />84 <br />85 <br />85 <br />86 <br />87 <br />88 <br />89 <br />91 <br />93 <br />95 <br />97 <br />100 <br />103 106 110 <br />113 117 122'' <br />90 <br />84 <br />85 <br />86 <br />86 <br />87 <br />88 <br />89 <br />91 <br />92 <br />95 <br />97 <br />100 <br />103 <br />'106 109 1'13 <br />117 122 '127 <br />91 <br />85 <br />86 <br />87 <br />87 <br />88 <br />89 <br />90 <br />92 <br />94 <br />97 <br />99 <br />'102 <br />105 <br />'109 113 '117 <br />'122 126 132' <br />92 <br />86 <br />87 <br />88 <br />88 <br />89 <br />90 <br />92 <br />94 <br />96 <br />99 <br />101 <br />105 <br />'108 <br />112 116 121 <br />126 '131 <br />93 <br />87 <br />88 <br />89 <br />89 <br />90 <br />92 <br />93 <br />95 <br />98 <br />10-1 <br />'104 <br />107 <br />111 <br />116 '120 '125 <br />130 136 <br />94 <br />87 <br />89 <br />90 <br />90 <br />91 <br />93 <br />95 <br />97 <br />'100 <br />'103 <br />'106 <br />110 <br />'1'14 <br />119 '124 '129 <br />135 '14'1 <br />95 <br />88 <br />89 <br />91 <br />91 <br />93 <br />94 <br />96 <br />99 <br />102 <br />'105 <br />109 <br />'113 <br />118 <br />'123 '128 134 <br />140 <br />96 <br />89 <br />90 <br />92 <br />93 <br />94 <br />96 <br />98 <br />101 <br />104 <br />'108 <br />112 <br />1'16 <br />121 <br />126 132 138 <br />145 <br />97 <br />90 <br />91 <br />93 <br />94 <br />95 <br />97 <br />100 <br />103 <br />'106 <br />1.10 <br />'114 <br />'119 <br />'125 <br />130 '136 '143 <br />150 <br />98 <br />91 <br />92 <br />94 <br />95 <br />97 <br />99 <br />102 <br />105 <br />109 <br />113 <br />117 <br />123 <br />128 <br />-134 '141 148 <br />99 <br />92 <br />93 <br />95 <br />96 <br />90 <br />'101 <br />'104 <br />107 <br />'111 <br />115 <br />120 <br />126 <br />132 <br />'138 '145 '153 <br />i^y <br />f <br />100 <br />93 <br />94 <br />96 <br />97 <br />Joe <br />'102 <br />106 <br />'109 <br />1-14 <br />118 <br />'124 <br />'129 <br />'136 <br />'143 750 '158. <br />W <br />101 <br />93 <br />95 <br />97 <br />99 <br />101 <br />'104 <br />108 <br />'112 <br />l it <br />121 <br />'127 <br />'133 <br />140 <br />'147 155 <br />= <br />102 <br />94 <br />96 <br />98 <br />100 <br />103 <br />'106 <br />110 <br />'114 <br />'119 <br />124 <br />'130 <br />'137 <br />'144 <br />152 '160 <br />103 <br />95 <br />97 <br />99 <br />10'1 <br />'104 <br />'108 <br />'112 <br />116 <br />'122 <br />'127 <br />'13-1 <br />'Id'1 <br />'148 <br />'157 '165 Heat <br />fl- <br />104 <br />96 <br />98 <br />100 <br />103 f'106 <br />110 <br />114 <br />119 <br />'124 <br />'131 <br />137 <br />145 <br />153 <br />IG1 <br />d <br />105 <br />97 <br />99 <br />102 <br />'104 <br />'108 <br />112 <br />116 <br />'12-1 <br />'127 <br />134 <br />'141 <br />149 <br />157 <br />'I6G <br />1— <br />106 <br />98 <br />100 <br />103 <br />'106 <br />'109 <br />114 <br />119 <br />124 <br />'130 <br />137 <br />145 <br />'153 <br />162 <br />'f72 Index <br />107 <br />99 <br />101 <br />'104 <br />107 <br />'1'1'1 <br />116 <br />121 <br />'127 <br />'134 <br />141 <br />149 <br />'157 <br />'167, <br />108 <br />100 <br />102 <br />'105 <br />109 <br />'113 <br />'118 <br />'123 <br />'130 <br />137 <br />144 <br />153 <br />162..' <br />109 <br />100 <br />103 <br />107 <br />110 <br />115 <br />'120 <br />126 <br />133 <br />140 <br />148 <br />157 <br />16;. <br />110 <br />111 <br />112 <br />101 <br />102 <br />'104 <br />104 <br />106 <br />107 <br />'108 <br />109 <br />'111 <br />112 <br />'114 <br />115 <br />117 <br />119 <br />121 <br />122 <br />'125 <br />127 <br />129 <br />'131 <br />134 <br />136 <br />139 <br />'142 <br />143 <br />147 <br />150 <br />152 <br />'156 <br />'1GO <br />I6'1 <br />16 <br />1 <br />A <br />�,EA r//F <br />9 <br />113 <br />'104 <br />108 <br />112 <br />'I 17 <br />123 <br />129 <br />137 <br />'14. <br />154 <br />'Is <br />IZ <br />.� <br />114 <br />'105 <br />109 <br />113 <br />119 <br />125 <br />'132 <br />140 <br />148 <br />158 <br />168 <br />115 <br />'106 <br />110 <br />115 <br />'121 <br />127 <br />134 <br />143 <br />'1 +2 <br />162 <br />173 <br />116 <br />107 <br />111 <br />116 <br />'122 <br />129 <br />137 <br />IJC <br />'155 <br />166 <br />17 <br />117 <br />'108 <br />112 <br />118 <br />'124 <br />'132 <br />140 <br />'149 <br />'I 5q <br />170 <br />14 <br />HeatmokzlikelV- <br />118 <br />'108 <br />113 <br />119 <br />126 <br />"134 <br />f42 <br />"152 <br />'162 <br />'174 <br />�- <br />r <br />Sunstroke, muscle cramps, and/or heat <br />119 <br />'109 <br />'114 <br />'12'1 <br />'128 <br />136 <br />'145 <br />'155 <br />'166 <br />17W <br />- <br />e#ausdon IikelV. <br />Heatstroke possble <br />120 <br />110 <br />'1'I6 <br />'122 <br />'130 <br />'138 <br />'148 <br />'158 <br />'170 <br />1; <br />D ac;er <br />'•With prolonged <br />and/or <br />121 <br />111 <br />117 <br />124 <br />'132 <br />'141 <br />'151 <br />'162 <br />1,__ <br />physioal ac6etrV- <br />122 <br />'f11 <br />"I'I8 <br />'125 <br />'134 <br />'143 <br />154 <br />'I65 <br />-� <br />�Exrtreme <br />Sunstroke, muscle cramps, and/or heat <br />e#aus on possble with prolonged <br />123 <br />112 <br />119 <br />'127 <br />1a%'147 <br />157.'1' <br />Caution <br />a osureandior by icaladieity. <br />124 <br />11 <br />Caution <br />Fatigue possible with prolonged <br />125 <br />J <br />sure and/or phyri laMMty. <br />Some populations pose an additional challenge in that people can be affected by heat more quickly or more <br />severely based on other underlying factors, including age, health and lifestyle choices or circumstances. <br />Individuals possessing any combination of the following characteristics or conditions are at greater risk for <br />experiencing a serious, temperature -attributable illness or injury: <br />• Age and underlying conditions: This at -risk group includes infants and older people (65 and older) who may <br />be more susceptible to the effects of extreme heat due to their physiology and state of health, or who may be <br />unable to express signs or recognizable symptoms of heat exposure. It includes people with underlying <br />medical conditions (e.g., heart disease, diabetes, asthma, malnutrition, substance abuse) that may be <br />exacerbated during extreme heat. <br />• Cognitive impairments: People with mental illnesses, with cognitive disorders, or under the influence of <br />drugs or alcohol may be unable to make rational decisions that would help limit their exposure to excessive <br />heat or to recognize symptoms of excessive heat exposure. In addition to impairing judgment, alcohol, <br />sedatives and other legal or illegal medications or controlled substances may impair the body's ability to <br />maintain normal body temperature. <br />Gil <br />