AI Summary

A heat dome is expected to dominate the southwestern United States through the end of August and into early September, bringing daytime highs of 110‑111 °F (43‑46 °C). The National Weather Service warns that the extreme temperatures could affect more than 45 million people across the region. The forecast arrives as wildfires continue to burn and heat intensifies across the area. This combination of heat and fire poses heightened danger for residents and outdoor activities.

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