Eastern US Endures Extreme Heatwave: Millions Face Dangerous Conditions Through Wednesday

Millions across the eastern half of the United States are enduring a dangerous and prolonged heatwave, with heat indices soaring to potentially life-threatening levels. As of Tuesday, July 29, over 185 million people from South Dakota to Florida and up the East Coast to Boston remain under alerts for widespread, sweltering conditions.

Parts of the Southeast, particularly from the Carolinas to Florida, are experiencing the brunt of this extreme weather, with feels-like temperatures forecast between 105 and 115 degrees. Specific areas in Mississippi and Louisiana could see heat indices as high as 120 degrees. The Midwest, including regions from Nebraska to Minnesota, also continues to grapple with intense heat, following weekend feels-like temperatures that ranged from 97 to 111 degrees.

The Northeast corridor, encompassing major cities like Philadelphia, New York City, and Boston, is bracing for multiple days of dangerous heat, with heat indices expected to reach the mid-90s to 104 degrees. This severe heat and humidity are anticipated to persist across the eastern US through Wednesday, July 30, with major cities such as St. Louis, Memphis, Charlotte, Savannah, Tampa, and Jackson, Mississippi, likely to record actual temperatures in the upper 90s to low 100s.

Adding to the challenging conditions, smoke from Canadian wildfires continues to create hazy skies, particularly in New York City, New Jersey, and Connecticut. An additional plume of smoke is expected to impact the I-95 corridor on Tuesday afternoon. Compounding the danger, overnight and early morning lows are offering little respite, with temperatures only dropping into the 70s or higher, preventing adequate cooling.

Between Monday and Wednesday, large portions of the Southeast, including Atlanta, Charlotte, and Jacksonville, Florida, are under an extreme heat risk, designated at a four-out-of-four level. The severity of this event was underscored on Sunday when Tampa, Florida, broke a 130-year record, hitting 100 degrees for the first time in its recorded history.

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