"Understanding Heat Domes and Their Impact on the Western US"

A heat dome, caused by high-pressure systems in the atmosphere, is bringing dangerously high temperatures to the Western U.S., with some areas experiencing highs over 100 degrees. This phenomenon traps heat like a lid on a pot, leading to prolonged periods of extreme heat. Climate change is making such heat events more frequent and intense. To stay safe, people should stay hydrated, seek shade, and check on vulnerable individuals. The National Weather Service and other agencies are issuing heat advisories and providing resources to help people manage the heat.