940
WWUS74 KSHV 211621
NPWSHV
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SHREVEPORT LA
1121 AM CDT FRI AUG 21 2026
ARZ072-073-LAZ001>006-010>014-017>022-TXZ124>126-136>138-149>153-
165>167-220200-
/O.EXB.KSHV.HT.Y.0010.260822T0200Z-260823T0100Z/
/O.CON.KSHV.XH.W.0004.000000T0000Z-260822T0200Z/
COLUMBIA-UNION-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN-UNION-DE SOTO-
RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE-NATCHITOCHES-WINN-GRANT-
CALDWELL-LA SALLE-WOOD-UPSHUR-MARION-SMITH-GREGG-HARRISON-CHEROKEE-
RUSK-PANOLA-NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE-SABINE-
INCLUDING THE CITIES OF SAN AUGUSTINE, CARTHAGE, COUSHATTA, CENTER,
COLFAX, SPRINGHILL, MANSFIELD, MANY, GILMER, SHREVEPORT, RINGGOLD,
MARTIN, GIBSLAND, MONTGOMERY, BERNICE, COLUMBIA, CLARKS, RUSTON, BIG
SANDY, JEFFERSON, TYLER, QUITMAN, LOGANSPORT, PLEASANT HILL, MONROE,
FARMERVILLE, NATCHITOCHES, NACOGDOCHES, STONEWALL, WINNSBORO, MINDEN,
MAGNOLIA, ARCADIA, HENDERSON, MINEOLA, LUFKIN, JENA, HOMER, DRY
PRONG, OLLA, HAWKINS, LONGVIEW, JACKSONVILLE, RUSK, GRAYSON,
JONESBORO, MARSHALL, HEMPHILL, PINELAND, BOSSIER CITY, EL DORADO,
ZWOLLE, HAYNESVILLE, MIDWAY, AND WINNFIELD
1121 AM CDT FRI AUG 21 2026
...HEAT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 8 PM CDT
SATURDAY...
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS
EVENING...
* WHAT...FOR THE EXTREME HEAT WARNING, DANGEROUSLY HOT CONDITIONS
WITH HEAT INDEX VALUES UP TO 113. FOR THE HEAT ADVISORY, HEAT INDEX
VALUES UP TO 112 EXPECTED.
* WHERE...PORTIONS OF SOUTH CENTRAL AND SOUTHWEST ARKANSAS, NORTH
CENTRAL AND NORTHWEST LOUISIANA, AND EAST AND NORTHEAST TEXAS.
* WHEN...FOR THE EXTREME HEAT WARNING, UNTIL 9 PM CDT THIS EVENING.
FOR THE HEAT ADVISORY, FROM 9 PM THIS EVENING TO 8 PM CDT SATURDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS. 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.
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.
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.
ARZ050-051-059>061-070-071-OKZ077-TXZ096-097-108>112-220200-
/O.EXT.KSHV.HT.Y.0010.000000T0000Z-260823T0100Z/
SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE-
MCCURTAIN-RED RIVER-BOWIE-FRANKLIN-TITUS-CAMP-MORRIS-CASS-
INCLUDING THE CITIES OF PITTSBURG, MOUNT PLEASANT, LONE STAR, MOUNT
VERNON, DE QUEEN, PRESCOTT, OMAHA, TEXARKANA, ATLANTA, ASHDOWN,
NAPLES, QUEEN CITY, BOGATA, LINDEN, NASHVILLE, DIERKS, IDABEL, HOPE,
MINERAL SPRINGS, CLARKSVILLE, HUGHES SPRINGS, LEWISVILLE, BRADLEY,
STAMPS, DAINGERFIELD, AND BROKEN BOW
1121 AM CDT FRI AUG 21 2026
..HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM CDT SATURDAY
* WHAT...HEAT INDEX VALUES UP TO 109 EXPECTED.
* WHERE...PORTIONS OF SOUTHWEST ARKANSAS, SOUTHEAST OKLAHOMA, AND
NORTHEAST TEXAS.
* WHEN...UNTIL 8 PM CDT SATURDAY.
* 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.
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.
26
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