Heat Advisory Begins 11 AM Tuesday in Pointe Coupee, West and East Feliciana, 20 More Zones
The National Weather Service alert record for New Orleans lists heat index values up to 110 under the advisory, which runs from 11 AM to 8 PM CDT Tuesday, and up to 115 under an Extreme Heat Warning in force until 8 PM CDT this evening.
3 reports on this incident · first at Aug 17, 2026, 1:17 p.m. ET
Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.
We last searched for new coverage of this at Aug 17, 2026, 6:13 p.m. ET — checked 15h ago.
Earlier reports
Aug 17, 2026, 1:26 p.m. ET
Weather Service Warns of Increased Risk for Heat-Related Illnesses
Heat-related illnesses increase significantly during extreme heat and high humidity events, and hot temperatures combined with humidity may cause heat illnesses, according to official advisory records from the National Weather Service New Orleans LA on August 18, 2026.
The warning accompanies a Heat Advisory issued across 23 zones in portions of southeast Louisiana and southern Mississippi. The advisory begins at 11:00 AM CDT on August 18, 2026, and expires at 8:00 PM CDT. Heat index values are expected to reach up to 110 under the advisory, while an Extreme Heat Warning through 8:00 PM CDT covers heat index values up to 115.
The advisory covers areas including Pointe Coupee, West Feliciana, East Feliciana, St. Helena, Washington, Iberville, West Baton Rouge, East Baton Rouge, Assumption, Lower St. Bernard, Northern Tangipahoa, Central Plaquemines, Lower Plaquemines, Coastal Jefferson, Upper Lafourche, Lower Lafourche, Upper Terrebonne, Lower Terrebonne, Wilkinson, Amite, Pike, Walthall, and Pearl River. Cities in the advisory area include Baton Rouge, Plaquemine, New Roads, Franklinton, and Poplarville.
Official weather guidance urges people to drink plenty of fluids, stay in air-conditioned rooms, avoid direct sun exposure, and check up on relatives and neighbors. The Weather Service also warned that car interiors reach lethal temperatures in a matter of minutes and stated that young children and pets must not be left in unattended vehicles.
Aug 17, 2026, 1:17 p.m. ETFirst report
Heat Advisory Runs 11 AM to 8 PM Tuesday in Pointe Coupee, East and West Feliciana, Baton Rouge and 19 More Zones
A Heat Advisory is in effect for portions of southeast Louisiana and southern Mississippi, according to the Heat Advisory product issued by National Weather Service New Orleans LA and carried in the National Weather Service raw alert text feed for August 18, 2026. The office's own headline on the product reads: "HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY." The advisory begins at 11:00 AM CDT and expires at 8:00 PM CDT, with heat index values up to 110 expected. The same product states that an Extreme Heat Warning is in effect until 8 PM CDT this evening, with dangerously hot conditions and heat index values up to 115.
The alert record lists 23 zones. They are Pointe Coupee, West Feliciana, East Feliciana, St. Helena, Washington, Iberville, West Baton Rouge, East Baton Rouge, Assumption, Lower St. Bernard, Northern Tangipahoa, Central Plaquemines, Lower Plaquemines, Coastal Jefferson, Upper Lafourche, Lower Lafourche, Upper Terrebonne, Lower Terrebonne, Wilkinson, Amite, Pike, Walthall and Pearl River. Cities named in the record include Baton Rouge, Plaquemine, Kentwood, Pierre Part, Raceland, Addis, New Roads, Salem, Buras, Liberty, Golden Meadow, Montpelier, Shell Beach, Franklinton, McNeil, Poplarville, Cocodrie, Fort Adams, Centreville, Darlington, Dolorosa, White Castle, Paincourtville, Dexter and Pointe A La Hache.
On impacts, the weather service product states 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 in the alert 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 product warns against leaving young children and pets in unattended vehicles, stating that car interiors will reach lethal temperatures in a matter of minutes. It also advises taking extra precautions when outside, wearing lightweight and loose fitting clothing, limiting strenuous activities to early morning or evening, and taking action when symptoms of heat exhaustion and heat stroke appear.
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- Version 117 Aug 2026, 17:26current
First published.
- Version 117 Aug 2026, 17:17current
First published.
- Version 117 Aug 2026, 17:54current
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