Miami hits 100°F and Oklahoma reaches 112°F during heatwave

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On Tuesday, Miami reached 100°F for only the second time in 130 years, matching an all-time record set in 1942, while Oklahoma experienced temperatures as high as 112°F. This extreme heat was driven by a stalled heat dome—a persistent area of high pressure trapping hot air—which stretched across the southern United States. While Miami's coastal geography typically provides a moderating effect, a shift in wind patterns prevented the usual cooling sea breeze from developing. The event fits into a broader trend of rising temperatures, with Miami now recording 44 more above-normal summer days than in the 1970s.

Consequences

The combination of high heat and humidity impairs the human body's ability to cool itself, increasing the risk of heat-related illness for residents in the affected regions. Dangerous conditions are expected to persist, as heat advisories covered nearly all of the Florida Peninsula on Wednesday.

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