251
WWUS74 KJAN 200849
NPWJAN
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSON MS
349 AM CDT THU AUG 20 2026
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
201700-
/O.CON.KJAN.HT.Y.0022.260820T1600Z-260821T0100Z/
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-
MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-CONCORDIA-BOLIVAR-
SUNFLOWER-LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES-
CHOCTAW-OKTIBBEHA-WASHINGTON-HUMPHREYS-HOLMES-ATTALA-WINSTON-NOXUBEE-
ISSAQUENA-SHARKEY-YAZOO-MADISON MS-LEAKE-NESHOBA-KEMPER-WARREN-HINDS-
RANKIN-SCOTT-NEWTON-LAUDERDALE-CLAIBORNE-COPIAH-SIMPSON-SMITH-JASPER-
CLARKE-JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-
COVINGTON-JONES-MARION-LAMAR-FORREST-
INCLUDING THE CITIES OF PRENTISS, VICKSBURG, BROOKSVILLE, FAYETTE,
PURVIS, PICKENS, NEWELLTON, CLEVELAND, LAKE PROVIDENCE, WESSON,
VAIDEN, CANTON, GREENVILLE, CROSSETT, PEARL, RULEVILLE, GRENADA,
TCHULA, RALEIGH, BROOKHAVEN, DELHI, LEXINGTON, BUDE, MAYERSVILLE,
HARRISONBURG, EUPORA, JONESVILLE, ACKERMAN, WEST FERRIDAY,
CARROLLTON, RICHLAND, YAZOO CITY, MORTON, TALLULAH, RAYVILLE,
MATHISTON, FERRIDAY, WEIR, MOUNT OLIVE, QUITMAN, WINONA, VIDALIA,
WEST POINT, HAMBURG, CONEHATTA, MONTICELLO, CARTHAGE, GOODMAN,
BASSFIELD, NEW HEBRON, ROXIE, NORTH CROSSETT, PEARL RIVER, SCOOBA,
MACON, HAZLEHURST, BASTROP, SHUBUTA, OAK GROVE, LOUISVILLE,
MENDENHALL, COLUMBUS, LAKE VILLAGE, WATERPROOF, GREENWOOD, BAY
SPRINGS, HATTIESBURG, WEST
HATTIESBURG, FOREST, LAUREL, DECATUR, HEIDELBERG, ST. JOSEPH,
EUDORA, COLLINS, ISOLA, ANGUILLA, NORTH CARROLLTON, JACKSON,
INDIANOLA, EPPS, MERIDIAN, LUMBERTON, BRANDON, WEST CROSSETT,
STONEWALL, WINNSBORO, DERMOTT, MADISON, RIDGELAND, KOSCIUSKO,
STARKVILLE, BELZONI, PORT GIBSON, PHILADELPHIA, NATCHEZ, DURANT,
COLUMBIA, CRYSTAL SPRINGS, UNION, MAGEE, DE KALB, TAYLORSVILLE,
MEADVILLE, ROLLING FORK, AND NEWTON
349 AM CDT THU AUG 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM
CDT THIS EVENING...
* WHAT...HEAT INDEX VALUES UP TO 110 DEGREES EXPECTED.
* 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.
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.
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