It is shaping up to be a hot week in much of the country. The Northeast will get its hottest days of the year so far starting on Wednesday. Other parts of the country, including the Midwest, have also been sizzling this week.
The spreading heat is all the result of a dome of high-pressure aloft that will expand and shift from out of the central states into the Northeast by mid to late week. In simple terms, high pressure in the upper levels of the atmosphere means hot temperatures at the surface.
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