Heat Advisories span 12 states with heat index up to 46°C (114°F)
Heat Advisories span 12 states with heat index up to 46°C (114°F)
US · Published Sep 15, 2026
Heat Advisories issued by the National Weather Service (NWS) are in effect across 12 U.S. states from September 14 to September 16,
Forecast heat index values range from 41°C (105°F) to 46°C (114°F), with the highest values expected in southern Texas. The advisories cover areas from Texas and Oklahoma through the Lower Mississippi Valley and Mid-South into Indiana and Kentucky. An upper-level ridge is contributing to the hazardous heat conditions, with elevated humidity exacerbating the situation. The advisories highlight the risk of heat-related illnesses, particularly for outdoor workers and those not acclimated to the heat.

Impact & Risks

The extreme heat poses significant risks to public health, particularly for vulnerable populations such as the elderly, children, and individuals with pre-existing health conditions. Outdoor workers and those engaging in strenuous activities are at heightened risk of heat-related illnesses. Prolonged exposure to high temperatures can lead to dehydration, heat exhaustion, and heat stroke. Communities across the affected states are advised to take precautions to mitigate these risks.

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