Noun
a wave of unusually hot weather
Source: WordNetThis is a ridiculous heat wave we're in right now, and to contribute, Newt Gingrich said that for the entire month of June, he will stop blowing hot air. Bill Maher
Approximately 2,500 Con Ed customers lost power last week during the heat wave, and several hundred more were in the dark in Borough Park. Source: Internet
California is experiencing a record-breaking heat wave, with unusual humidity, which has included a rare set of violent lightning storms that have, in turn, sparked wildfires. Source: Internet
A warming trend has persisted since then. citation Lithuania experienced a drought in 2002, causing forest and peat bog fires. citation The country suffered along with the rest of Northwestern Europe during a heat wave in the summer of 2006. Source: Internet
A summer heat wave in Victoria, Australia, created conditions which fuelled the massive bushfires in 2009. Source: Internet
A heat wave is an extended period of extreme heat, and is often accompanied by high humidity. Source: Internet