Heat wave expected to bake two-thirds of nation through weekend

Heat wave expected to bake two-thirds of nation through weekend

High temperatures caused by a large dome of high pressure will send temperatures into the 90s and 100s in many parts.

Heat wave expected to blanket 230 million across US

A “major heat wave” is expected to bake two-thirds of the nation through this weekend, with forecasters calling for temperatures to soar across much of the central and eastern United States, the National Weather Service said.

From the Plains to Chicago to New England, the hottest temperatures of the year are expected, thanks to a large dome of high pressure that will send temperatures climbing in the coming days, the weather service said.

On the East Coast, cities are already taking precautions. In New York City, where cooling stations were set up Wednesday and will remain in place through Sunday, temperatures are forecast to climb to “dangerously high levels by the weekend,” reaching the mid- to upper-90s by Friday. The heat index, which is the measure of how hot it feels when humidity is factored in with air temperature, is forecast to reach close to reach 107 degrees Saturday, the city’s Office of Emergency Management and the Health Department said Tuesday.

Boston’s mayor Tuesday warned residents to prepare for temperatures between 85 and 97 degrees, with the hottest forecast Saturday. With humidity, it could feel as hot as 105 degrees in Boston, the mayor’s office said.

In swampy Washington, D.C., heat indices of up to 100 to 115 degrees were forecast for the afternoons of Friday through Sunday, according to the weather service.

And the Midwest is staring down similar scorching temperatures.Detroit is expected to see an afternoon heat index of up to 105 degrees Friday and Saturday; Chicago is forecast to get much of the same.

Very hot and humid conditions are expected across the Eastern US for the end of the week into the weekend. In addition to extremely hot daytime temperatures, overnight lows in most areas are not expected for fall below the mid-upper 70s, or even the lower 80s in some urban areas.

The weather service is warning the Plains of a “major heat wave” that will grip the region starting Wednesday and into the weekend. Parts of Kansas, Nebraska, Iowa, Missouri, Oklahoma and Illinois are under an excessive heat warning, with highs each afternoon expected to be in the mid- to upper-90s and with a heat index as high as 113 degrees.

People shouldn’t expect to catch a cool evening breeze, either.

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