614
WWUS74 KMEG 190431
NPWMEG

URGENT - WEATHER MESSAGE
National Weather Service Memphis TN
1131 PM CDT Tue Aug 18 2026

MSZ002>005-009-013>017-021>024-TNZ048-050>053-089>091-191715-
/O.CAN.KMEG.HT.Y.0021.260819T1600Z-260820T0100Z/
/O.NEW.KMEG.HT.Y.0022.260819T1600Z-260820T0100Z/
Marshall-Benton MS-Tippah-Alcorn-Prentiss-Lafayette-Union-
Pontotoc-Lee MS-Itawamba-Yalobusha-Calhoun-Chickasaw-Monroe-
Lauderdale-Haywood-Crockett-Madison-Chester-Fayette-Hardeman-McNairy-
Including the cities of Corinth, Okolona, Amory, New Albany, Bruce,
Henderson, Pontotoc, Ripley MS, Oxford, Brownsville, Calhoun City,
Ripley TN, Alamo, Bolivar, Water Valley, Oakland, Coffeeville,
Fulton, Ashland, Tupelo, Holly Springs, Booneville, Somerville,
Houston, Jackson, Selmer, and Aberdeen
1131 PM CDT Tue Aug 18 2026

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT WEDNESDAY...

* WHAT...Heat index values up to 109 degrees expected.

* WHERE...Portions of North Mississippi and West Tennessee.

* WHEN...From 11 AM to 8 PM CDT Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&

$$

ARZ026>028-035-036-048-MSZ001-008-012-TNZ049-088-191715-
/O.UPG.KMEG.HT.Y.0021.260819T1600Z-260820T0100Z/
/O.EXA.KMEG.XH.W.0006.260819T1600Z-260820T0100Z/
Craighead-Poinsett-Mississippi-Cross-Crittenden-St. Francis-
DeSoto-Tate-Panola-Tipton-Shelby-
Including the cities of Blytheville, Jonesboro, Forrest City, Olive
Branch, Covington, Batesville, Germantown, Memphis, Millington,
Wynne, Bartlett, West Memphis, Collierville, Southaven, Senatobia,
and Harrisburg
1131 PM CDT Tue Aug 18 2026

...EXTREME HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM CDT WEDNESDAY...

* WHAT...Dangerously hot conditions with heat index values up to 109
  degrees expected.

* WHERE...Portions of East Arkansas, North Mississippi, and West
  Tennessee.

* WHEN...From 11 AM to 8 PM CDT Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&

$$

ARZ049-058-MSZ007-010-011-020-191715-
/O.CON.KMEG.XH.W.0006.260819T1600Z-260820T0100Z/
Lee AR-Phillips-Tunica-Coahoma-Quitman-Tallahatchie-
Including the cities of Marks, Clarksdale, Tunica, Helena-West
Helena, Marianna, and Charleston
1131 PM CDT Tue Aug 18 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT
WEDNESDAY...

* WHAT...Dangerously hot conditions with heat index values up to 112
  degrees expected.

* WHERE...In Arkansas, Lee AR and Phillips Counties. In Mississippi,
  Coahoma, Quitman, Tallahatchie, and Tunica Counties.

* WHEN...From 11 AM to 8 PM CDT Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&

$$

ARZ009-018-MOZ113-115-TNZ019-191715-
/O.NEW.KMEG.HT.Y.0022.260819T1600Z-260820T0100Z/
Clay-Greene-Dunklin-Pemiscot-Dyer-
Including the cities of Caruthersville, Kennett, Paragould,
Dyersburg, Corning, and Piggott
1131 PM CDT Tue Aug 18 2026

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT WEDNESDAY...

* WHAT...Heat index values up to 108 degrees expected.

* WHERE...Dunklin, Clay, Greene, Pemiscot, and Dyer.

* WHEN...From 11 AM to 8 PM CDT Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&

$$

CJC