OHIO — Millions of people across the central and eastern United States, including Ohio, are under heat advisories and extreme heat warnings as a prolonged and dangerous heat wave intensifies this week.
According to the National Weather Service’s Weather Prediction Center, much of the region can expect high temperatures in the 90s to low 100s. Combined with high humidity, heat index values are expected to reach between 100 and 110 degrees, with some locations potentially seeing heat indices as high as 115 degrees.
The heat wave is expected to continue through the July 4 holiday, with widespread Major to Extreme HeatRisk forecast across the Lower Great Lakes, Mississippi Valley, Ohio Valley and Mid-Atlantic. Forecasters warn these conditions increase the likelihood of heat-related illnesses and can affect anyone who does not have adequate hydration or access to cooling.
Adding to the danger, overnight temperatures are expected to remain in the 70s across many areas, providing little relief from the daytime heat and increasing the risk of heat stress over several consecutive days.
The Weather Prediction Center also expects elevated heat risks to continue beyond Independence Day. Moderate extreme heat risks are forecast to persist across parts of the eastern Plains, Mississippi Valley, Mid-Atlantic and Southeast on July 6, with slight heat risks expanding farther west through July 10. Heat index values of 100 to 105 degrees or higher are expected to continue in many locations.
Officials urge residents to take precautions during the prolonged period of dangerous heat by limiting strenuous outdoor activities, drinking plenty of water, wearing lightweight clothing and seeking air-conditioned spaces or cooling centers whenever possible. Those working or spending extended periods outdoors should take frequent breaks and monitor themselves and others for signs of heat-related illness.
Residents are encouraged to monitor forecasts from their local National Weather Service office for updated heat advisories, warnings and safety information as the heat wave continues.
