Heat Wave Approaches Eastern US Before Holiday Weekend

Why it matters locally: Forecasters anticipate that the heat wave will bring dangerously high temperatures to Pennsylvania, with the National Weather Service likely to issue local advisories in affected areas across the state.

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Forecasters predict a substantial heat wave will affect parts of the eastern United States, with temperatures expected to reach dangerous levels. The National Weather Service has issued extreme heat warnings for several areas, effective through Friday night. Several cities, including Washington D.C., anticipate some of their highest recorded temperatures. In Maryland, state officials issued a state of preparedness in response to the forecasted heat. The heat event coincides with the approach of a holiday weekend, potentially increasing public exposure to high temperatures. Authorities advise residents to take precautions during this period.