East Coast Could Get a Second Round of 100-Degree Heat

Ready or not, another surge of heat is headed to the Northeast and the mid-Atlantic by next week. While this latest round of toasty temperatures will not rival the Fourth of July extreme heat event in intensity or duration, it will still feel quite miserable at times. Read on for the details on when and where you can expect a return to the sweltering weather.

East Coast Braces for Another Wave of Unseasonable Heat

A new heat dome is building across the interior West and the northern Plains this weekend. This area of high pressure will push across the Upper Midwest, the Plains, and the Mississippi Valley before bringing the heat and stifling humidity to the East Coast.

The mass of unseasonably hot air will bring up moisture-rich air from the Gulf as it moves to the east. This will naturally increase the humidity levels, sending real feel readings to between 105 and 115 degrees across much of the eastern U.S. next week.

What was most remarkable about last week's heat wave was its staying power. The good news is that the upcoming heat event is not expected to linger as long. The latest forecast models signal that the East will only have to bear a day or two of searing temperatures and high humidity. The arrival of a cold front will bring the jet stream to the south, ushering in the cooler air from the north.

As of now, highs are expected to hover in the 90s for the bulk of the major cities along the East Coast. For example, New York City and Boston will see temperatures peak on Wednesday with highs in the mid to upper 90s. Humidity levels around 50% will amplify the heat. The mercury will approach the century mark for about three days to the south in Washington, D.C.  

Forecasters will be keeping a close eye on how the heat dome behaves this weekend as it tracks to the east across the northern Plains and the Upper Midwest. Should it retain its intensity and organization, the eastern U.S. will likely once again be dealing with dangerous conditions by next week. Stay tuned as we continue to monitor this developing situation.

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