Multiple regions across the United States are experiencing severe heat advisories and warnings issued by the National Weather Service (NWS) due to extreme heat and high humidity. Heat index values are expected to reach between 95 and 113 degrees in various areas including Pennsylvania, New York City, North Texas, East Texas, and the mid-Missouri River Valley. NWS recommends staying hydrated, seeking air-conditioned shelter, and avoiding direct sun exposure. The Occupational Safety and Health Administration (OSHA) advises frequent rest breaks for outdoor workers. Additionally, a potential tropical system is being monitored in the Southwestern Atlantic, which could impact weather forecasts in the coming days. Rain chances remain modest across affected regions, providing little relief from the heat.