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Heat advisory issued
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The gist
National Weather Service issued heat advisories across multiple states as heat index values reach 100-105 degrees.
The advisories warn of heat-related illnesses, urging residents to stay hydrated and limit outdoor.
Background
A late-summer heat wave is affecting several regions in the U.S., prompting the National Weather Service to issue heat advisories. These advisories are typically issued when the heat index, or 'feels like' temperature, is forecast to be between 100 and 104 degrees. The combination of high temperatures and humidity increases the risk of heat-related illnesses, especially for vulnerable populations.
How it unfolded
- Aug 31, 2026NBC Chicago reports a heat advisory is set to take effect Tuesday and Wednesday for parts of Illinois and Indiana, with heat index values up to 105 degrees.
- Sep 1, 2026Heat advisories issued for central Ohio, parts of South Jersey, and northern Illinois, with heat index values reaching 100-105 degrees.
- Sep 2, 2026Additional heat advisories issued for Berks County, Pennsylvania, central North Carolina, Missouri, and Chicago area, with heat index values up to 105 degrees.
- Sep 3, 2026Heat advisory for Berks County remains in effect from 11 a.m. to 8 p.m., with heat index values up to 100 degrees.
Who’s saying what
- Official
- The National Weather Service warns that hot temperatures and high humidity may cause heat illnesses and advises precautions such as staying hydrated and limiting outdoor activities.
- Public
- Residents are encouraged to drink plenty of fluids, stay in air-conditioned areas, and check on relatives and neighbors.