236
WWUS74 KJAN 210937
NPWJAN
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSON MS
437 AM CDT FRI AUG 21 2026
LAZ007>009-015-016-023>026-MSZ040>043-047>049-053>055-059>064-072-
211800-
/O.CON.KJAN.XH.W.0009.260821T1600Z-260822T0100Z/
MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-MADISON LA-FRANKLIN
LA-CATAHOULA-TENSAS-CONCORDIA-ISSAQUENA-SHARKEY-YAZOO-MADISON MS-
WARREN-HINDS-RANKIN-CLAIBORNE-COPIAH-SIMPSON-JEFFERSON-ADAMS-
FRANKLIN MS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-MARION-
INCLUDING THE CITIES OF BASTROP, HARRISONBURG, WINNSBORO, MONTICELLO,
OAK GROVE, ROXIE, MEADVILLE, DELHI, JACKSON,
BROOKHAVEN, FAYETTE, RICHLAND, MENDENHALL, VIDALIA, EPPS, ST.
JOSEPH, NEWELLTON, MADISON, ROLLING FORK, PEARL, BUDE, ANGUILLA, NEW
HEBRON, BASSFIELD, NATCHEZ, VICKSBURG, WESSON, TALLULAH, RAYVILLE,
WEST FERRIDAY, FERRIDAY, CRYSTAL SPRINGS, PORT GIBSON, COLUMBIA,
MAGEE, YAZOO CITY, BRANDON, LAKE PROVIDENCE, CANTON, PRENTISS,
MAYERSVILLE, RIDGELAND, HAZLEHURST, JONESVILLE, AND WATERPROOF
437 AM CDT FRI AUG 21 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM CDT THIS EVENING...
* WHAT...FOR THE EXTREME HEAT WARNING, DANGEROUSLY HOT CONDITIONS
WITH HEAT INDEX VALUES IN EXCESS OF 110 DEGREES EXPECTED AND UP TO
115 DEGREES POSSIBLE.
* WHERE...PORTIONS OF NORTHEAST LOUISIANA AND CENTRAL, SOUTH CENTRAL,
SOUTHWEST, AND WEST CENTRAL MISSISSIPPI.
* WHEN...FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING.
* 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.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
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.
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.
ARZ074-075-MSZ018-019-025>039-044>046-050>052-056>058-065-066-073-
074-211800-
/O.CON.KJAN.HT.Y.0023.260821T1600Z-260822T0100Z/
ASHLEY-CHICOT-BOLIVAR-SUNFLOWER-LEFLORE-GRENADA-CARROLL-MONTGOMERY-
WEBSTER-CLAY-LOWNDES-CHOCTAW-OKTIBBEHA-WASHINGTON-HUMPHREYS-HOLMES-
ATTALA-WINSTON-NOXUBEE-LEAKE-NESHOBA-KEMPER-SCOTT-NEWTON-LAUDERDALE-
SMITH-JASPER-CLARKE-COVINGTON-JONES-LAMAR-FORREST-
INCLUDING THE CITIES OF NEWTON, MERIDIAN, HATTIESBURG, ISOLA,
GREENWOOD, CARROLLTON, LEXINGTON, CLEVELAND, QUITMAN, LUMBERTON,
UNION, HEIDELBERG, GREENVILLE, MORTON, MATHISTON, KOSCIUSKO, DERMOTT,
WEIR, WEST CROSSETT, LAKE VILLAGE, WINONA, NORTH CARROLLTON,
INDIANOLA, PICKENS, MACON, HAMBURG, STARKVILLE, DECATUR, COLLINS,
NORTH CROSSETT, RULEVILLE, ACKERMAN, MOUNT OLIVE, TAYLORSVILLE,
FOREST, COLUMBUS, TCHULA, SCOOBA, LOUISVILLE, LAUREL, WEST
HATTIESBURG, EUDORA, GRENADA, VAIDEN, GOODMAN, SHUBUTA, BELZONI,
DURANT, BAY SPRINGS, CROSSETT, PEARL RIVER, BROOKSVILLE, RALEIGH,
PURVIS, CARTHAGE, CONEHATTA, EUPORA, WEST POINT, DE KALB, STONEWALL,
AND PHILADELPHIA
437 AM CDT FRI AUG 21 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM
CDT THIS EVENING...
* WHAT...HEAT INDEX VALUES IN EXCESS OF 105 DEGREES EXPECTED AND UP
TO 110 DEGREES POSSIBLE.
* WHERE...PORTIONS OF SOUTHEAST ARKANSAS, NORTHEAST LOUISIANA, AND
MUCH OF EASTERN MISSISSIPPI.
* WHEN...FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT RELATED
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.
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.
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.
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