A heat wave refers to a prolonged period of hot weather that often results in high temperature and humidity levels. There are several synonyms for this phenomenon, including scorching heat, hot spell, summertime heat, and sweltering temperatures. Other phrases that can be used to describe a heat wave include blistering heat, torrid temperatures, and boiling point weather. These terms are frequently used during weather broadcasts and can be used interchangeably to refer to a period of intense summer heat. Regardless of which term is used, a heat wave can be dangerous, particularly for vulnerable populations such as the elderly and those with existing health conditions.