Louisiana Moderate Heat Advisory | Effective 08/18/2026 10:55

Headline: 
Heat Advisory issued August 18 at 12:55PM CDT until August 19 at 8:00PM CDT by NWS Lake Charles LA
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
August 18, 2026 - 10:55am
Expires: 
August 19, 2026 - 2:00am
Description: 
* WHAT...For the first Heat Advisory, heat index values up to 110. For the second Heat Advisory, heat index values up to 110 expected. * WHERE...Portions of central, south central, and southwest Louisiana. * WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from 11 AM to 8 PM CDT Wednesday. * 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. 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. To reduce risk during outdoor work, 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. Heat stroke is an emergency! Call 9 1 1.
Area Description: 
Rapides; Avoyelles; Evangeline; St. Landry; Lafayette; Upper St. Martin; Lower St. Martin; Northern Acadia; Upper Iberia; Upper St. Mary; Lower Iberia; Lower St. Mary
Forcast Office: 
NWS Lake Charles LA
Sender: 
w-nws.webmaster@noaa.gov