Heat Advisories Issued Across 12 U.S. States, Heat Index to Reach 114°F (46°C)
The National Weather Service (NWS) has issued Heat Advisories spanning 12 U.S. states from Texas to Indiana, effective from September 14 to September 16, 2026. Heat index values are forecast to reach up to 114°F (46°C) in southern Texas, with other areas experiencing indices between 105°F (41°C) and 114°F (46°C). The advisories cover regions including Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Alabama, Tennessee, Kentucky, Indiana, Illinois, Missouri, and Kansas. The extreme heat is attributed to a strong upper-level ridge moving from the Southeast to the central U.S., creating hazardous conditions across the Southern Plains and Mid-South. The advisories highlight the risk of heat-related illnesses, particularly for those engaging in outdoor activities or not acclimated to the heat.