Heat Advisory Returns, Extreme Heat Warning Also Issued

The National Weather Service has issued a Heat Advisory for parts of Florida where heat index values are elevated but not yet at warning levels. Additionally, in areas like Jacksonville and Northeast Florida, an Extreme Heat Warning is in effect, signaling temperatures that pose significant health risks.

Conditions Across the Southeast

A widespread heat wave is impacting over 185 million people across the Southeast and Mid-Atlantic. Cities like Tampa, Jacksonville, Memphis, and St. Louis are experiencing heat indexes between 110–115°F, with some areas nearing Level 4 heat risk, the most severe category.

In Tampa, records were shattered as temperature soared to 100°F for the first time in over 130 years, with “feels-like” temperatures reaching 113°F.

Expected Heat Timeline

Conditions are projected to remain extreme through Wednesday, with minimal overnight cooling—overnight lows staying in the 70s or higher. By mid- to late-week, a cold front is expected to bring relief, dropping temperatures and humidity across much of the region.

Safety Guidance

Residents should take the following precautions:

• Stay indoors in air-conditioned environments
• Drink plenty of water and avoid alcohol and sugary beverages
• Use light-colored, breathable clothing
• Limit outdoor activity during peak heat hours
• Check on vulnerable populations such as the elderly, children, outdoor workers, and those with medical conditions

Summary Table