552
FXUS64 KSHV 261642
AFDSHV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
1142 AM CDT WED AUG 26 2026
..NEW DISCUSSION
KEY MESSAGES
ISSUED AT 1140 AM CDT WED AUG 26 2026
- TRIPLE DIGIT HEAT RETURNS TODAY FOR MUCH OF OUR FOUR-STATE AREA
ALONG WITH BETTER RAIN CHANCES.
- A WEAK COOL FRONT WILL SOON BE NUDGING THE UPPER RIDGE FARTHER
WEST, WITH SCATTERED SHOWERS AND THUNDERSTORMS FOR MID TO LATE
WEEK, SOME COULD BE SEVERE LATE TODAY AND INTO THE OVERNIGHT.
- MOSTLY SUNNY SKIES RETURN THIS WEEKEND WITH LITTLE TO NO RAIN
AS THE UPPER RIDGE EXPANDS BACK OVER THE MIDSOUTH. NEXT WEEK WE
MAY SEE THE SEA BREEZE LIFT INTO OUR AREA MID TO LATE DAYS.
DISCUSSION
ISSUED AT 1058 AM CDT WED AUG 26 2026
UPPER-LEVEL RIDGE ACROSS THE DESERT SOUTHWEST TO BRING WEAK
NORTHWEST FLOW TO THE REGION THROUGH THE END OF THE WORKWEEK. AT
THE SURFACE, A WEAK FRONTAL BOUNDARY ACROSS ARKANSAS INTO NORTH
TEXAS WILL REMAIN NEARLY STATIONARY THROUGH THURSDAY EVENING
BEFORE DIVING SOUTH ACROSS THE ARKLATEX.
AHEAD OF THE FRONT, INCREASED MOISTURE COMBINED WITH HIGH
TEMPERATURES FORECAST TO CLIMB TO NEAR 100 DEGREES, FOLLOWING THE
MID-DECK DISSIPATING ACROSS THE REGION, WILL LEAD TO HEAT INDEX
VALUES INCREASING TO 105 TO 110 DEGREES ACROSS THE MAJORITY OF THE
ARKLATEX MAINLY SOUTH OF I-30. THUS A HEAT ADVISORY REMAINS IN
EFFECT THROUGH THIS AFTERNOON.
SHOWERS AND THUNDERSTORMS ARE FORECAST TO INCREASE IN COVERAGE
AHEAD OF THE FRONTAL BOUNDARY ACROSS ARKANSAS LATER TODAY BEFORE
BEING CARRIED SOUTH BY NORTHWEST FLOW ALOFT. SOME STRONG STORMS
MAY BE POSSIBLE ACROSS THE ARKLATEX THIS EVENING INTO THE
OVERNIGHT HOURS WITH CONDITIONS IMPROVING BY DAYBREAK.
WITH INCREASED CLOUD COVER AND THE POTENTIAL FOR LINGERING SHOWERS
ON THURSDAY MORNING, THE ATMOSPHERE WILL BE LESS THAN FAVORABLE
FOR SUPPORTING TRIPLE DIGIT HIGH TEMPERATURES. THE MORE REASONABLE
EXPECTATION IS FOR HIGHS TO AVERAGE IN THE MID 90S ACROSS MOST
LOCATIONS EXCEPT FOR POSSIBLY SLIGHTLY HIGHER VALUES IN THE UPPER
90S ACROSS PORTIONS OF DEEP EAST TEXAS. THUS, WILL HOLD OFF ON
ISSUING ANY HEAT HEADLINES AT THIS TIME.
AS MENTIONED EARLIER, FRONTAL BOUNDARY TO PUSH THROUGH THE REGION
LATE THURSDAY NIGHT INTO FRIDAY WITH A DRIER CONTINENTAL AIRMASS
BUILDING IN ITS WAKE. TEMPERATURES WILL AVERAGE IN THE MID TO
UPPER 90S EACH DAY THROUGH THE WEEKEND. A WEAKNESS IN THE
NORTHERN GULF COULD BE ENOUGH TO KEEP THE UPPER-RIDGE FROM FULLY
REBUILDING ACROSS THE REGION DURING THE EARLY PART OF NEXT WEEK
MAINTAINING HIGHS IN THE MID TO UPPER 90S EACH DAY. /05/
AVIATION
(12Z TAFS)
ISSUED AT 541 AM CDT WED AUG 26 2026
WIDELY SCATTERED SHOWERS CURRENTLY GOING ON ACROSS THE WESTERN AND
NORTHWESTERN HALF OF OUR AIRSPACE ATTM. THIS ACTIVITY HAS SHOWN A
SLOW TENDENCY TO ADVANCE SOUTH AND EAST AND MAY EXPAND A LITTLE
MORE IN COVERAGE BEFORE DISSIPATING LATER THIS MORNING. OTHERWISE,
WE AWAIT UPPER FORCING TIED TO A POTENT SHORTWAVE THAT WILL MOVE
FROM NORTHWEST TO SOUTHEAST ACROSS OUR REGION OVERNIGHT TONIGHT.
ALONG AND IN ADVANCE OF THIS FEATURE, WE SHOULD SEE SCATTERED
CONVECTION ONCE AGAIN LATE THIS AFTERNOON, EVENING AND OVERNIGHT
ACROSS OUR REGION. HAVE THEREFORE INSERTED VCSH AND/OR VCTS
AND BEGAN THIS AS EARLY AS 21Z ACROSS OUR NORTHERN MOST TERMINALS
AND CLOSER TO 00Z MOST OTHER TERMINALS.
13
SPOTTER INFORMATION STATEMENT
ISSUED AT 1234 AM CDT WED AUG 26 2026
SPOTTER ACTIVATION MAY BE NEEDED LATE TODAY AND INTO THE OVERNIGHT
AS A COOL FRONT ARRIVES. THE POTENTIAL FOR ISOLATED STRONG TO
SEVERE THUNDERSTORMS WILL BE FOR PRIMARILY FOR DOWNBURST WINDS.
/24/
PRELIMINARY POINT TEMPS/POPS
SHV 101 76 97 74 / 20 40 20 30
MLU 100 74 95 72 / 30 60 40 20
DEQ 99 69 96 67 / 40 20 10 10
TXK 100 73 96 72 / 30 40 10 10
ELD 99 71 96 70 / 20 50 10 10
TYR 103 76 99 74 / 30 30 20 20
GGG 103 75 99 73 / 20 40 20 20
LFK 102 77 99 74 / 10 30 30 40
SHV WATCHES/WARNINGS/ADVISORIES
AR...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR ARZ070>072.
LA...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR LAZ001>006-010>014-
017>022.
OK...NONE.
TX...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR TXZ096-097-108>112-
124>126-136>138-149>153-165>167.
DISCUSSION...05
AVIATION...13
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