Editing Heat index (section)

==Limitations==
The heat index does not work well with extreme conditions, like [[supersaturation]] of air, when the air is more than 100% saturated with water. David Romps, a physicist and climate scientist at the [[University of California, Berkeley]] and his graduate student Yi-Chuan Lu, found that the heat index was underestimating the severity of intense heat waves, such as the [[1995 Chicago heat wave]].<ref>{{cite journal |last1=Romps |first1=David |last2=Lu |first2=Yi-Chuan |date=2022-08-29 |title=Chronically underestimated: a reassessment of US heat waves using the extended heat index |url=https://iopscience.iop.org/article/10.1088/1748-9326/ac8945/meta |journal= Environmental Research Letters |volume=17 |issue=9 |doi=10.1088/1748-9326/ac8945 |bibcode=2022ERL....17i4017R |access-date=2024-03-31}}</ref> 

Other issues with the heat index include the unavailability of precise humidity data in many geographical regions, the assumption that the person is healthy, and the assumption that the person has easy access to water and [[Shade (shadow)|shade]].<ref>{{cite magazine |last1=Barber |first1=Gregory |title=The US Is Measuring Extreme Heat Wrong |url=https://www.wired.com/story/the-us-is-measuring-extreme-heat-wrong/ |magazine=[[Wired (magazine)|Wired]] |access-date=2022-09-21}}</ref>