130 million Americans are feeling the extreme heat. And more is coming.
More than 130 million Americans were already under a heat warning, watch or advisory early on July 24.
"A late July heat wave will continue to expand eastwards during the second half of the week with sultry conditions on tap from the Lower Mississippi Valley and Midwest to the Northeast and Mid-Atlantic," wrote Peter Mullinax, meteorologist at the National Weather Service's Weather Predicition Center.
Mullinax said record high temperatures are "likely to be challenged" in parts of the Northeast over the next two days, with all regions affected also likely to see some record warm minimum temperatures broken.
Heat indices will generally top out somewhere between 100-105 from the Southern Plains, Midwest, and Great Lakes on July 24 and the Northeast and Mid-Atlantic by July 25 with localized heat indices possibly approaching 110. Heat indices measure how hot it actually feels when factoring for humidity.
South sweating out the 'ridiculous' heat: See who is next in triple digits
Developments:
∎ Heavy rain, flash flooding, and severe weather are likely July 24 from the Central Plains and Midwest to the Great Lakes.
∎ "Relatively tranquil" weather was expected across the West, but a fire weather threat was in effect for Northern California and parts of Nevada, Utah, Oregon, Idaho, and Wyoming due to lightning.
Heat dome could linger for two weeks
The heat dome won't dissipate soon. Dangerous heat is expected across parts of the Central and Southeast through July, the weather service says. High temperatures will reach 100 degrees from Texas to western Tennessee almost every day for a week or two, AccuWeather said.
The Northeast was given a couple days reprieve: highs in the 80s and relatively low humidity. But the dome will spread across the region July 25, driving high temperatures deep into the 90s that will feel like more than 100 degrees as the humidity builds there.
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