Southwestern U.S. Faces Extreme Heat with Temperatures Reaching 115°F (46°C)
The southwestern United States is experiencing a significant heat wave, with a heat dome causing extreme temperatures to persist through late August and early September. According to the U.S. National Weather Service (NWS), over 45 million people are at risk as daytime temperatures in some areas are expected to soar to 110–115°F (43–46°C). The heat dome, caused by a high-pressure system trapping hot air, is also preventing cooler air from entering the region. Nighttime temperatures are not expected to drop significantly, increasing the risk of heat-related illnesses. Additionally, monsoonal moisture is forecasted to bring scattered heavy downpours and thunderstorms from Texas to California, as well as parts of the Rocky Mountains and the Plains. High humidity levels are expected to exacerbate the heat's impact on residents. (Source: UA.News, published on 2026-08-26 01:57:07 GMT)