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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 hottest day of the heat wave is expected today with heat indices climbing to 105 to 110 degrees. An Excessive Heat Warning is in effect for all of northern IL, while a heat advisory is in ...
In San Antonio, every day in June 2022 was at least as hot as 97 °F (36 °C), except for June 28. [21] On June 13, St. Louis hit 100 °F (37.8 °C), breaking the daily record. In addition, from the 13–16, the morning low never went below 81 °F (27.2 °C), breaking the warmest morning low record for the next 4 days.
As of 9:30 a.m., there is no risk of severe weather tonight. Heat Advisory Residents in interior portions of Monmouth and Ocean counties should be aware that heat indices could reach near 100 this ...
A heat advisory remains in effect until 10 p.m. Tuesday, with heat index values expected to reach up to 104 degrees, according to the NWS.
The highest natural ground surface temperature ever recorded may have been an alleged reading of 93.9 °C (201.0 °F) at Furnace Creek, California, United States, on 15 July 1972. [7] In 2011, a ground temperature of 84 °C (183.2 °F) was recorded in Port Sudan, Sudan. [8] The theoretical maximum possible ground surface temperature has been ...
Some 80 million people are currently under a heat advisory or warning as heat is expected to surpass 90 degrees Fahrenheit (32.2 degrees Celsius) and flirt with 100 degrees in some areas, which is ...
2023 heat waves. With a deviation of over 0.7 °C from the average of the years 1991 to 2020, July 2023 marks the warmest July ever recorded. Numerous regions in the Northern Hemisphere, particularly in southern Europe, went through severe heatwaves, with anomalies of +4 °C in Italy, Greece, and Spain. Additionally, North Africa and the ...