Western U.S. Faces Prolonged Heatwave Due to Building Atmospheric Ridge
A significant atmospheric ridge is developing over the southwestern United States, leading to a prolonged heatwave expected to persist into August. This ridge, centered over Southern California and Arizona, is anticipated to bring record-breaking temperatures and elevated humidity levels, particularly in Southern California. The heatwave is characterized by high 500mb geopotential heights, indicating extreme atmospheric conditions. The warm ocean temperatures along the California coast are contributing to the elevated humidity, making the heat more oppressive. The National Weather Service has issued heat advisories and warnings, highlighting the potential for health impacts due to the combination of heat and humidity. 
