Meteorologist Bryan Jackson explained the current weather conditions, saying, "This area of high pressure, sometimes referred to as a heat dome, is a slow moving, upper-level high pressure system of stable air and a deep layer of high temperatures." He elaborated that with such systems, "It is usually sunny, the sun is beating down, it is hot and the air is contained there."
The extreme heat is affecting millions, with reports indicating that "About 14.7 million people are under an excessive heat warning, with heat indexes expected at 110 degrees Fahrenheit and above. Another 10 million people were under a heat advisory."
In Fort Worth, the heat has taken a toll on health services, as Desiree Partain stated, "MedStar ambulance responded to 286 heat-related calls during the first 20 days of August, about 14 per day, compared to about 11 per day in August 2023."
Despite the heat, brief relief has come from monsoon rains in Phoenix, which have provided momentary reprieves since Sunday, but daytime highs continue to top 100 degrees Fahrenheit.
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