What Is a Heat Dome? Ridge Phenomenon Bakes Unites States, Europe
Summary
A weather pattern called a heat dome is causing very high temperatures in parts of Europe and the United States. This happens when high pressure traps hot air, making heat build up for days or weeks and increasing risks like drought and heat-related illnesses.Key Facts
- A heat dome forms when a large area of high pressure stays over a region, trapping hot air underneath.
- This blocking of clouds and rain makes the heat stronger and causes temperatures to rise above normal levels.
- Europe is expecting a heat dome to bring unusually high temperatures to Spain, France, and the UK.
- The U.S. Southwest and Texas are already experiencing dangerous heat and humidity due to a similar heat dome.
- Three hikers recently died in the Grand Canyon, partly because of extreme heat conditions.
- Nighttime temperatures in some areas are staying high, reducing relief from the heat.
- Several North American cities hosting the World Cup, including Dallas, Houston, and Miami, face above-average temperatures.
- Authorities are warning people to stay hydrated, limit outdoor activity, and check on vulnerable people during this period.
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