The chart is a grid where you can find the heat index temperature by looking at the air temperature and relative humidity. For example, the NWS says if it's 96 outside and the humidity is 65%, the ...

Use the chart to identify areas where the organization may need additional resources or personnel, and to plan for future growth and expansion. In conclusion, there are several reasons why every ...

OSHA introduced the NWS heat index chart into the trial record and pointed to it as evidence. USPS argued, however, that the chart’s second layer should be disregarded as lacking a scientific basis.