Heat dome trapping summer heat across U.S., raising health risks
What is a heat dome? Learn how a high-pressure system traps hot air, fuels multi-day heat waves and raises the risk of heat-related illnesses across the United States.
Millions of Americans are facing another round of dangerous summer heat as a weather pattern known as a heat dome settles over parts of the country, pushing temperatures higher and increasing the risk of heat-related illnesses. The phenomenon has become increasingly familiar during extreme heat events, creating stretches of unusually hot weather that can last for several days or longer, KARE 11 reports.