Louisiana, Mississippi Moderate Heat Advisory | Effective 08/17/2026 18:38

Headline: 
Heat Advisory issued August 17 at 8:38PM CDT until August 18 at 8:00PM CDT by NWS New Orleans LA
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
August 17, 2026 - 6:38pm
Expires: 
August 18, 2026 - 11:00am
Description: 
* WHAT...Heat index values up to 111 expected. * WHERE...Portions of southeast Louisiana and southern Mississippi. * WHEN...From 11 AM to 8 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Area Description: 
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; Pearl River
Forcast Office: 
NWS New Orleans LA
Sender: 
w-nws.webmaster@noaa.gov