NWS: Heat Index Over 105 Possible Wednesday in Coastal Alabama, Florida

A Heat Advisory runs from 11 a.m. to 8 p.m. CDT Wednesday for all coastal counties, with highs in the upper 90s, the National Weather Service Mobile AL says.

3 reports on this incident · first at Aug 18, 2026, 1:09 p.m. ET

By AI ReporterWritten Aug 19, 2026, 6:01 p.m. ET

A will be in effect from 11 a.m. until 8 p.m. CDT Wednesday, Aug. 19, 2026, for all coastal counties, according to the . Highs will top out in the upper 90s, with heat index values over 105 possible through the afternoon, the says. The alert was issued at 11:44 a.m. CDT Tuesday, Aug. 18. The timing section of the alert also refers to an Extreme Heat Warning, listed as in effect "until 8 PM CDT this evening." The records provided give no heat index figure for that warning. Heat-related illnesses increase significantly during extreme heat and high humidity events, and hot temperatures and high humidity may cause heat illnesses, the weather service says. The covers zones. In Alabama, they are Baldwin Central, Baldwin Coastal, Mobile Central and Mobile Coastal counties. In Florida, they are Escambia Coastal, Okaloosa Coastal and Santa Rosa Coastal counties. Cities in the affected areas include Mobile, Pensacola, Prichard, Navarre, Gulf Shores, Gulf Breeze, Bayou La Batre, Niceville, Wright, Daphne, Pensacola Beach, Eglin AFB, Fort Morgan, Seminole, Dauphin Island, Beulah, Perdido Bay, Theodore, Bagdad, Fairhope, Fort Walton Beach, Destin, Fort Pickens, Foley and Orange Beach. The weather service advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking up on relatives and neighbors. It also urges taking extra precautions when outside, wearing lightweight and loose fitting clothing, and trying to limit strenuous activities to early morning or evening. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments, according to the . Anyone overcome by heat should be moved to a cool and shaded location. Take action when you see symptoms of heat exhaustion and heat stroke. Heat stroke is an emergency; call 9 1 1.

Earlier reports

Aug 19, 2026, 8:18 a.m. ET
Heat Advisory in Effect Wednesday for Coastal Alabama and Florida Counties
A Heat Advisory issued by the National Weather Service Mobile AL is in effect on Wednesday, August 19, 2026, beginning at 11 AM CDT and expiring at 8 PM CDT. The advisory headline reads: "HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT WEDNESDAY." The product was issued at 11:44 AM CDT on Tuesday, August 18, 2026. The same product also lists an Extreme Heat Warning in force until 8 PM CDT this evening.
According to the National Weather Service Mobile AL, the Heat Advisory covers all coastal counties, where highs will top out in the upper 90s and heat index values over 105 are possible through the afternoon. The office lists the advisory across 27 zones: in Alabama, Baldwin Central, Baldwin Coastal, Mobile Central and Mobile Coastal counties; in Florida, Escambia Coastal, Okaloosa Coastal and Santa Rosa Coastal counties. Cities named in the advisory include Mobile, Prichard, Theodore, Bayou La Batre, Dauphin Island, Fort Morgan, Daphne, Fairhope, Foley, Gulf Shores, Orange Beach, Seminole, Perdido Bay, Pensacola, Pensacola Beach, Beulah, Gulf Breeze, Navarre, Bagdad, Fort Pickens, Destin, Fort Walton Beach, Niceville, Wright and Eglin AFB.
The Weather Service warns that heat related illnesses increase significantly during extreme heat and high humidity events, and that hot temperatures and high humidity may cause heat illnesses.
The precautions listed by the Weather Service are to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. The office advises taking extra precautions when outside, wearing lightweight and loose fitting clothing, and limiting strenuous activities to early morning or evening. To reduce risk during outdoor work, the advisory notes, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. The Weather Service states that heat stroke is an emergency and to call 9 1 1.
Aug 18, 2026, 1:09 p.m. ETFirst report
NWS Mobile Issues Heat Advisory for Parts of Alabama and Florida
The National Weather Service office in Mobile, Alabama, issued an official Heat Advisory on August 18, 2026, which is in effect from 11:00 AM to 8:00 PM CDT on Wednesday, August 19, 2026. According to the issuing weather office, heat index values up to 110 are expected under the Heat Advisory, while heat index values up to 113 are noted for the Extreme Heat Warning until 8:00 PM CDT this evening.
The advisory covers 27 zones across Alabama and Florida, including Mobile Central, Baldwin Central, Mobile Coastal, and Baldwin Coastal counties in Alabama, alongside Escambia Coastal, Santa Rosa Coastal, and Okaloosa Coastal counties in Florida. Specific cities within these areas include Mobile, Pensacola, Prichard, Navarre, Gulf Shores, Gulf Breeze, Bayou La Batre, Niceville, Wright, Daphne, Pensacola Beach, Eglin AFB, Fort Morgan, Seminole, Dauphin Island, Beulah, Perdido Bay, Theodore, Bagdad, Fairhope, Fort Walton Beach, Destin, Fort Pickens, Foley, and Orange Beach.
Official records state that heat-related illnesses increase significantly during extreme heat and high humidity. Recommended precautions include drinking plenty of fluids, staying in air-conditioned rooms, staying out of the sun, checking on relatives and neighbors, wearing lightweight and loose-fitting clothing, and limiting strenuous activities to early morning or evening. The Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments for outdoor work. Anyone overcome by heat should be moved to a cool and shaded location, and emergency services should be called by dialing 9 1 1 for heat stroke.

Was this report accurate and useful?

Sources

Revision history

Version 119 Aug 2026, 22:01current
First published.
Version 118 Aug 2026, 17:09current
First published.
Version 119 Aug 2026, 12:18current
First published.

How we work

This site models an investigative reporter rather than a wire desk. The aim is the most complete, accurate and timely account we can assemble — all three, not a trade between them. Reports go out within minutes of the coverage they are built from, carrying context a newsroom would otherwise need a day and a records request to gather: what has happened at this place before, what the operator’s record is, which aircraft it actually was.

Reports are built from primary sources — accident and court records, official registries, weather observations, agency statements — and from reputable news organisations, each named where their reporting is used. Facts are extracted before anything is written, and every one must be supported by a quotation found in the source itself; the model that writes the report is given only those verified facts and never sees the article, so it cannot introduce a detail no source stated.

Where sources disagree we publish the disagreement, attributed, rather than picking a figure. Where a fact comes from a record rather than a reporter, we say so, and the language matches: an instrument reading is never described as something anyone confirmed. Some things are deliberately withheld — a suspect is not named until an agency names them on the record, victims until families or officials release them — and corrections appear as visible revisions, never as silent edits.

None of that makes a report true. A quotation check proves a source said something, not that it was right, and an automated system can be confidently wrong in ways the checks do not catch. If something here is wrong, the feedback above is how it gets found. The full methodology, including what we refuse to publish.