Dictionary

heat dome en · NOUN

Meanings

1. A condition of extreme heat caused when the atmosphere traps hot air as if bounded by a lid or cap.
   • Parts of the United States, including the Mid-Atlantic and the Northeast, are expected to reach record-breaking temperatures as a dangerous “heat dome” settles in for the holiday weekend. 2026 July 2, Dani Blum, “How to Stay Safe in a ‘Heat Dome’”, in The New York Times, →ISSN:
   • The heatwave is being described as a “heat dome”. The term refers to the idea that this type of warmth extends high into the atmosphere and isn’t just a thin layer, and that it can have an impact on pressure and wind patterns. [2021 June 29, Hallie Golden, “The ‘heat dome’ explained: why the Pacific north-west is facing record temperatures”, in The Guardian, archived from the original on 12 Aug 2021:
   • Heat domes happen all over the world, and the one over Europe this week is locking in days of near-record highs across Britain, Spain and France. 2026 June 22, Nazaneen Ghaffar, “How a ‘Heat Dome’ Over Europe Keeps Temperatures Hot”, in The New York Times, →ISSN:

Forms

Relateds

heat haze · wet bulb temperature · heat stroke · heatwave · heatstroke · heat wave

Translations (3)

fr dôme de chaleur (Translations) · es cúpula de calor (Translations) · de Hitzeglocke (Translations)