(NEW YORK) — At least 100 million Americans are on alert for dangerous heat and humidity — stretching from Texas to Maine — on Friday, with parts of the Eastern Seaboard feeling like it’s in the triple digits.

Heat advisories are in place from Texas to West Virginia on Friday, with temperatures reaching between 105 and 110 degrees.

In Boston, the heat index — how hot it feels with humidity — could reach 103 degrees; New York City could feel like 104 degrees and Washington, D.C., could feel like 109 degrees.

The heat will reach levels that could impact “anyone without sufficient cooling” or proper hydration, according to the National Weather Service. The NWS added there will be “little to no overnight relief.”

An incoming cold front will provide a slight relief late Friday afternoon, wi

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