431
WWUS74 KMEG 201736
NPWMEG
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
1236 PM CDT THU AUG 20 2026
MSZ021>024-210145-
/O.EXA.KMEG.HT.Y.0024.260821T1600Z-260822T0100Z/
/O.CON.KMEG.HT.Y.0023.000000T0000Z-260821T0100Z/
YALOBUSHA-CALHOUN-CHICKASAW-MONROE-
INCLUDING THE CITIES OF CALHOUN CITY, COFFEEVILLE, AMORY, WATER
VALLEY, OKOLONA, HOUSTON, ABERDEEN, AND BRUCE
1236 PM CDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT FRIDAY
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
* WHAT...FOR THE FIRST HEAT ADVISORY, HEAT INDEX VALUES UP TO 109.
FOR THE SECOND HEAT ADVISORY, HEAT INDEX VALUES UP TO 106 EXPECTED.
* WHERE...CALHOUN, CHICKASAW, MONROE, AND YALOBUSHA COUNTIES.
* WHEN...FOR THE FIRST HEAT ADVISORY, UNTIL 8 PM CDT THIS EVENING.
FOR THE SECOND HEAT ADVISORY, FROM 11 AM TO 8 PM CDT FRIDAY.
* 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.
ARZ049-058-MSZ007-010-011-020-210145-
/O.CON.KMEG.HT.Y.0023.000000T0000Z-260821T0100Z/
/O.CON.KMEG.HT.Y.0024.260821T1600Z-260822T0100Z/
LEE AR-PHILLIPS-TUNICA-COAHOMA-QUITMAN-TALLAHATCHIE-
INCLUDING THE CITIES OF TUNICA, HELENA-WEST HELENA, MARKS,
MARIANNA, CLARKSDALE, AND CHARLESTON
1236 PM CDT THU AUG 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
..HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT FRIDAY
* WHAT...FOR THE FIRST HEAT ADVISORY, HEAT INDEX VALUES UP TO 109.
FOR THE SECOND HEAT ADVISORY, HEAT INDEX VALUES UP TO 110 EXPECTED.
* WHERE...IN ARKANSAS, LEE AR AND PHILLIPS COUNTIES. IN MISSISSIPPI,
COAHOMA, QUITMAN, TALLAHATCHIE, AND TUNICA COUNTIES.
* WHEN...FOR THE FIRST HEAT ADVISORY, UNTIL 8 PM CDT THIS EVENING.
FOR THE SECOND HEAT ADVISORY, FROM 11 AM TO 8 PM CDT FRIDAY.
* 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.
ARZ048-MSZ008-012>017-210100-
/O.CON.KMEG.HT.Y.0023.000000T0000Z-260821T0100Z/
ST. FRANCIS-TATE-PANOLA-LAFAYETTE-UNION-PONTOTOC-LEE MS-ITAWAMBA-
INCLUDING THE CITIES OF FORREST CITY, SENATOBIA, PONTOTOC,
BATESVILLE, OXFORD, NEW ALBANY, TUPELO, AND FULTON
1236 PM CDT THU AUG 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 107.
* WHERE...IN ARKANSAS, ST. FRANCIS COUNTY. IN MISSISSIPPI, ITAWAMBA,
LAFAYETTE, LEE MS, PANOLA, PONTOTOC, TATE, AND UNION COUNTIES.
* WHEN...UNTIL 8 PM CDT THIS EVENING.
* 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.
DNM
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