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,

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 ...

The heat index is an accurate measure of how hot it really feels when the affects of humidity are added to high temperature. Temp. Heat stroke or sunstroke likely. Sunstroke, muscle cramps, and/or heat exhaustion likely. Heatstroke possible with …

This calculator estimates heat index temperature felt by the human body based on the actual measured air temperature together with humidity level or dew point. sign in home

2023年9月20日 · 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.

2023年8月25日 · Heat Index Calculator How do we calculate the heat index? Choose the appropriate calculator and enter the values. Then click "Calculate". * Please note: The Heat Index calculation may produce meaningless results for temperatures and dew points outside of the range depicted on the Heat Index Chart linked below.

National Weather Service 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 60 82 84 88 91 95 100 105 110 116 123 129 137

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,

Use the chart below to assess the potential severity of heat stress. The chart should be used as a guideline only– individual reactions to the heat will vary among your athletes! Across the top of the chart, locate the ENVIRONMENTAL TEMPERATURE, i.e. the air temperature. Down the left side of the chart, locate the RELATIVE HUMIDITY.

This Heat Index Chart provides general guidelines for assessing the potential severity of heat stress (illness). Individual reactions to the heat will vary. Heat illness can occur at lower temperatures than those indicated on the “Heat Index & Possible Risk” section of this poster.