NWS Jacksonville FLXH.W 0006August 17, 2026
Extreme Heat Warning: Suwannee, Baker, Inland Nassau and 30 more, FL and GA
The National Weather Service office in Jacksonville issued an extreme heat warning for Suwannee, Baker, Inland Nassau and 30 more in Florida, Georgia, which was in force until 8:00 p.m. local time on August 18. It was the 6th extreme heat warning the NWS office in Jacksonville issued in 2026. Florida had 6 extreme heat warnings in August 2026, against 3 in an average August of 2008-2025 (Florida's extreme heat warnings by year).
ExpiredWarning
In force for 9 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Jacksonville FL
- Area
- Suwannee, Baker, Inland Nassau and 30 more
- State
- Florida
- Level
- Warning
- Issued
- 12:33 p.m. EDT, August 17, 2026
- In force from
- 11:00 a.m. EDT, August 18, 2026
- Expires
- 8:00 p.m. EDT, August 18, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KJAX XH.W 0006
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
* WHAT...For the Heat Advisory, heat index values 108 to 112. For the Extreme Heat Warning, dangerously hot conditions with heat index values 110 to 115 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the Extreme Heat Warning, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
What the agency told people to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.