591
WWUS74 KJAN 201726
NPWJAN
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSON MS
1226 PM CDT MON JUL 20 2026
ARZ074-LAZ007-015-023-MSZ026-027-210215-
/O.EXB.KJAN.XH.W.0002.260721T1500Z-260722T0200Z/
/O.EXT.KJAN.HT.Y.0009.000000T0000Z-260721T1500Z/
ASHLEY-MOREHOUSE-RICHLAND-FRANKLIN LA-GRENADA-CARROLL-
INCLUDING THE CITIES OF VAIDEN, BASTROP, DELHI, WINNSBORO, NORTH
CROSSETT, RAYVILLE, CROSSETT, WEST CROSSETT, CARROLLTON, NORTH
CARROLLTON, HAMBURG, AND GRENADA
1226 PM CDT MON JUL 20 2026
..HEAT ADVISORY NOW IN EFFECT UNTIL 10 AM CDT TUESDAY
..EXTREME HEAT WARNING IN EFFECT FROM 10 AM TO 9 PM CDT TUESDAY
* WHAT...FOR THE HEAT ADVISORY, HEAT INDEX VALUES UP TO 110F DEGREES
DURING THE DAYTIME, WITH LIMITED HEAT RELIEF OVERNIGHT. FOR THE
EXTREME HEAT WARNING, DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX
VALUES UP TO 115F DEGREES, WITH LIMITED HEAT RELIEF OVERNIGHT.
* WHERE...PORTIONS OF SOUTHEAST ARKANSAS, NORTHEAST LOUISIANA, AND
NORTH CENTRAL MISSISSIPPI.
* WHEN...FOR THE HEAT ADVISORY, UNTIL 10 AM CDT TUESDAY. FOR THE
EXTREME HEAT WARNING, FROM 10 AM TO 9 PM CDT TUESDAY.
* 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.
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.
LAZ008-009-016-025-MSZ036-040>043-047>049-053>055-059-210215-
/O.EXB.KJAN.XH.W.0002.260721T1500Z-260722T0200Z/
/O.EXT.KJAN.HT.Y.0010.000000T0000Z-260721T1500Z/
WEST CARROLL-EAST CARROLL-MADISON LA-TENSAS-HOLMES-ISSAQUENA-
SHARKEY-YAZOO-MADISON MS-WARREN-HINDS-RANKIN-CLAIBORNE-COPIAH-
SIMPSON-JEFFERSON-
INCLUDING THE CITIES OF NEWELLTON, TCHULA, WESSON, MADISON,
WATERPROOF, ANGUILLA, JACKSON, MAGEE, HAZLEHURST, LAKE
PROVIDENCE, EPPS, CANTON, PORT GIBSON, PEARL, VICKSBURG, FAYETTE,
TALLULAH, GOODMAN, PICKENS, DURANT, LEXINGTON, RICHLAND,
RIDGELAND, ROLLING FORK, MAYERSVILLE, BRANDON, ST. JOSEPH, YAZOO
CITY, OAK GROVE, CRYSTAL SPRINGS, AND MENDENHALL
1226 PM CDT MON JUL 20 2026
..HEAT ADVISORY NOW IN EFFECT UNTIL 10 AM CDT TUESDAY
..EXTREME HEAT WARNING IN EFFECT FROM 10 AM TO 9 PM CDT TUESDAY
* WHAT...FOR THE HEAT ADVISORY, HEAT INDEX VALUES UP TO 110F DEGREES
DURING THE DAYTIME, WITH LIMITED HEAT RELIEF OVERNIGHT. FOR THE
EXTREME HEAT WARNING, DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX
VALUES UP TO 115F DEGREES, WITH LIMITED HEAT RELIEF OVERNIGHT.
* WHERE...PORTIONS OF NORTHEAST LOUISIANA AND CENTRAL, SOUTHWEST,
AND WEST CENTRAL MISSISSIPPI.
* WHEN...FOR THE HEAT ADVISORY, UNTIL 10 AM CDT TUESDAY. FOR THE
EXTREME HEAT WARNING, FROM 10 AM TO 9 PM CDT TUESDAY.
* 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.
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.
ARZ075-MSZ018-019-025-034-035-210215-
/O.CON.KJAN.XH.W.0002.000000T0000Z-260722T0200Z/
CHICOT-BOLIVAR-SUNFLOWER-LEFLORE-WASHINGTON-HUMPHREYS-
INCLUDING THE CITIES OF INDIANOLA, CLEVELAND, BELZONI, ISOLA,
GREENWOOD, LAKE VILLAGE, DERMOTT, GREENVILLE, RULEVILLE, AND
EUDORA
1226 PM CDT MON JUL 20 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT TUESDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO
115F DEGREES, WITH LIMITED HEAT RELIEF OVERNIGHT.
* WHERE...PORTIONS OF SOUTHEAST ARKANSAS AND CENTRAL, NORTH CENTRAL,
AND NORTHWEST MISSISSIPPI.
* WHEN...UNTIL 9 PM CDT TUESDAY.
* 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.
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.
LAZ024-026-MSZ050-056>058-060>066-072>074-210215-
/O.CON.KJAN.HT.Y.0010.000000T0000Z-260722T0200Z/
CATAHOULA-CONCORDIA-SCOTT-SMITH-JASPER-CLARKE-ADAMS-FRANKLIN MS-
LINCOLN-LAWRENCE-JEFFERSON DAVIS-COVINGTON-JONES-MARION-LAMAR-
FORREST-
INCLUDING THE CITIES OF COLLINS, BUDE, SHUBUTA, BAY SPRINGS,
FERRIDAY, MONTICELLO, TAYLORSVILLE, PRENTISS, WEST HATTIESBURG,
STONEWALL, HATTIESBURG, NATCHEZ, JONESVILLE, BROOKHAVEN,
LUMBERTON, LAUREL, RALEIGH, MEADVILLE, WEST FERRIDAY, VIDALIA,
COLUMBIA, QUITMAN, MOUNT OLIVE, ROXIE, FOREST, HEIDELBERG,
PURVIS, MORTON, NEW HEBRON, HARRISONBURG, AND BASSFIELD
1226 PM CDT MON JUL 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT TUESDAY
* WHAT...HEAT INDEX VALUES UP TO 110F DEGREES DURING THE DAYTIME,
WITH LIMITED HEAT RELIEF OVERNIGHT.
* WHERE...PORTIONS OF NORTHEAST LOUISIANA AND CENTRAL, EAST CENTRAL,
SOUTH CENTRAL, SOUTHEAST, AND SOUTHWEST MISSISSIPPI.
* WHEN...UNTIL 9 PM CDT TUESDAY.
* 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.
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.
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.
MSZ028>033-037>039-044>046-051-052-210215-
/O.CON.KJAN.HT.Y.0009.000000T0000Z-260722T0200Z/
MONTGOMERY-WEBSTER-CLAY-LOWNDES-CHOCTAW-OKTIBBEHA-ATTALA-WINSTON-
NOXUBEE-LEAKE-NESHOBA-KEMPER-NEWTON-LAUDERDALE-
INCLUDING THE CITIES OF WINONA, DECATUR, MACON, COLUMBUS,
MERIDIAN, LOUISVILLE, NEWTON, PEARL RIVER, CONEHATTA, EUPORA,
CARTHAGE, UNION, SCOOBA, STARKVILLE, KOSCIUSKO, ACKERMAN, DE
KALB, WEST POINT, WEIR, MATHISTON, BROOKSVILLE, AND PHILADELPHIA
1226 PM CDT MON JUL 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT TUESDAY
* WHAT...HEAT INDEX VALUES UP TO 110F DEGREES DURING THE DAYTIME,
WITH LIMITED HEAT RELIEF OVERNIGHT.
* WHERE...PORTIONS OF CENTRAL, EAST CENTRAL, NORTH CENTRAL, AND
NORTHEAST MISSISSIPPI.
* WHEN...UNTIL 9 PM CDT TUESDAY.
* 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.
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.
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.
DC
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