Mexico has been reeling from a high-pressure weather phenomenon known as a “heat dome,” which has trapped hot air over much of the country, creating record-breaking temperatures that have surpassed 45 degrees Celsius (113 degrees Fahrenheit) in some places. Mexico has been reeling from a high-pressure weather phenomenon known as a “heat dome,” which has trapped hot air over much of the country, creating record-breaking temperatures that have surpassed 45 degrees Celsius (113 degrees Fahrenheit) in some places. Economic Times