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Extreme Heat Warning — Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Issued
11:00 AM CDT · ven., août 21 2026
Expires
8:00 PM CDT · ven., août 21 2026
Issuing Office
NWS KLIX

Affected Areas

Pointe Coupee, LA West Feliciana, LA East Feliciana, LA St. Helena, LA Washington, LA Iberville, LA West Baton Rouge, LA East Baton Rouge, LA Assumption, LA St. James, LA St. John The Baptist, LA Upper St. Bernard, LA Lower St. Bernard, LA Northern Tangipahoa, LA Southeast St. Tammany, LA Western Orleans, LA Eastern Orleans, LA Northern St. Tammany, LA Southwestern St. Tammany, LA Central Tangipahoa, LA Lower Tangipahoa, LA Northern Livingston, LA Southern Livingston, LA Western Ascension, LA Eastern Ascension, LA Upper Jefferson, LA Upper Plaquemines, LA Central Plaquemines, LA Lower Plaquemines, LA Central Jefferson, LA Coastal Jefferson, LA Upper Lafourche, LA Lower Lafourche, LA Upper Terrebonne, LA Lower Terrebonne, LA Upper St. Charles, LA Central St. Charles, LA Lower St. Charles, LA Wilkinson, MS Amite, MS Pike, MS Walthall, MS Pearl River, MS Northern Hancock, MS Northern Harrison, MS Northern Jackson, MS Southern Hancock, MS Southern Harrison, MS Southern Jackson, MS

Official Bulletin

* WHAT...For the Heat Advisory, heat index values up to 110. For the
Extreme Heat Warning, dangerously hot conditions with heat index
values up to 113 expected.

* WHERE...Portions of southeast Louisiana and southern Mississippi.

* WHEN...For the Heat Advisory, until 8 PM CDT this evening. For the
Extreme Heat Warning, from 11 AM to 8 PM CDT Friday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity may cause heat illnesses.

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.