685
FXUS64 KSHV 171820
AFDSHV
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SHREVEPORT LA
120 PM CDT WED SEP 17 2025
..NEW AVIATION
KEY MESSAGES
ISSUED AT 1226 AM CDT WED SEP 17 2025
- AFTERNOON ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL
REMAIN IN THE FORECAST OVER THE NEXT COUPLE OF DAYS, ALONG WITH
ABOVE NORMAL TEMPERATURES.
- HIGHER RAIN CHANCES WITH NEAR SEASONAL TEMPERATURES RETURN BY
THE END OF THE WEEK AND CONTINUE THROUGH THE WEEKEND, ESPECIALLY
ACROSS OUR NORTHERN ZONES.
- RAIN CHANCES WILL CONTINUE AND BECOME MORE WIDESPREAD ACROSS THE
REGION BY THE FIRST OF NEXT WEEK.
DISCUSSION
ISSUED AT 1226 AM CDT WED SEP 17 2025
A PSEUDO OMEGA BLOCK PATTERN REMAINS ACROSS THE CONUS, WITH UPPER
RIDGING STRETCHING FROM THE TEXAS TO MICHIGAN AND UPPER TROUGHING
ACROSS THE ROCKIES AND PLAINS, AS WELL AS THE ENTIRE EASTERN
CONUS. HOWEVER, THE RIDGE IS VERY WEAK. THIS HAS ALLOWED A WEAK
SHORT-WAVE ON THE BACKSIDE OF THE EASTERN CONUS TROUGH TO MOVE
INTO THE REGION YESTERDAY, RESULTING IN SOME STRONG TO SEVERE
STORMS ACROSS OUR SOUTH-CENTRAL ARKANSAS AND NORTHEAST LOUISIANA
ZONES. SOME WEAK OUTFLOW BOUNDARIES REMAIN ACROSS THE REGION FROM
THAT EARLIER CONVECTION, WHICH COULD RESULT IN SHOWERS DEVELOPING
OVERNIGHT. HOWEVER, COVERAGE SHOULD REMAIN VERY ISOLATED, AND
MOSTLY ACROSS OUR NORTHEAST AND CENTRAL LOUISIANA ZONES. WE SHOULD
SEE A SIMILAR SET-UP OVER THE NEXT COUPLE OF DAYS, WITH
ADDITIONAL SHORT-WAVES BACKDOORING INTO THE REGION. MORE ISOLATED
TO WIDELY SCATTERED CONVECTION WILL BE POSSIBLE DURING THE
AFTERNOON AND EARLY EVENING HOURS. PROGS ARE HINTING AT ISOLATED
CONVECTION BEING MORE SPREAD OUT ACROSS THE REGION, SO DECIDED TO
PUT SLIGHT CHANCE POPS OVER THE ENTIRE FORECAST AREA FOR WEDNESDAY
AND THURSDAY. ABOVE NORMAL TEMPERATURES WILL REMAIN ACROSS THE
REGION DURING THIS PERIOD. HIGHS WILL TOP OUT IN THE LOW TO MID
90S, WITH A FEW ISOLATED LOCATIONS IN THE UPPER 90S.
THE UPPER PATTERN WILL START TO SHIFT BY THE END OF THE WEEK INTO
THE START OF NEXT WEEKEND, AS THE UPPER RIDGE SHIFTS EASTWARD
INTO THE SOUTHEAST CONUS. THE AFOREMENTIONED ROCKIES/PLAINS UPPER
TROUGH WILL SHIFT SOUTHWARD INTO THE OUR NECK OF THE WOODS,
PUTTING US IN MORE OF A NORTHWEST FLOW PATTERN. RAIN CHANCES WILL
REMAIN OVER THE REGION ON FRIDAY AND SATURDAY AS DISTURBANCES MOVE
ACROSS THE FLOW. THE BEST CHANCES FOR PRECIPITATION WILL BE ALONG
AND NORTH OF THE I-20 CORRIDOR, WITH SOME RAIN POSSIBLY LINGERING
DURING THE OVERNIGHT PERIOD. AFTERNOON TEMPERATURES WILL REMAIN
IN THE LOW TO MID 90S IN OUR SOUTHERN ZONES, AND CLOSER TO NORMAL
IN OUR NORTHERN ZONES DUE TO THE CLOUD COVER AND HIGHER RAIN
CHANCES.
BY THE END OF THE WEEKEND INTO THE FIRST PORTION OF NEXT WEEK, THE
UPPER TROUGH WILL DIG SOUTHWARD THROUGH THE REGION, WITH SOME
LONG-TERM GUIDANCE TRYING TO DEVELOP A CUT-OFF LOW ACROSS CENTRAL
TEXAS. A MORE WIDESPREAD AND WETTER PATTERN WOULD TAKE SHAPE UNDER
THIS SET-UP, WITH SLIGHTLY COOLER AFTERNOON HIGHS. /20/
AVIATION
(18Z TAFS)
ISSUED AT 1255 PM CDT WED SEP 17 2025
VFR CONDITIONS SHOULD CONTINUE THROUGH THE 17/18Z TAF PERIOD. A
SCATTERED ELEVATED CU FIELD HAS BEGUN TO FORM ACROSS THE REGION,
WITH ISOLATED TO WIDELY SCATTERED CONVECTION EXPECTED TO DEVELOP
MAINLY OVER PORTIONS OF SE OK/SW AR/N LA BY EARLY TO MID-AFTERNOON,
WITH MORE ISOLATED COVERAGE POSSIBLE OVER MUCH OF E TX. CONFIDENCE
IS NOT GREAT THAT CONVECTION WILL AFFECT THE AREA TERMINALS IN SW
AR/N LA, BUT DID MAINTAIN VCTS FOR MID/LATE AFTERNOON FOR TXK/SHV
ONLY, AND WILL AMEND AS NEEDED ELSEWHERE AS THE CONVECTION DEVELOPS.
LOCALLY GUSTY WINDS AND BRIEF HEAVY RAINFALL WILL BE POSSIBLE
IN/NEAR THE CONVECTION, WHICH SHOULD MOSTLY DIMINISH BY MID EVENING.
STILL CAN'T RULE OUT ISOLATED CONVECTION REDEVELOPING OVERNIGHT,
MAINLY OVER PORTIONS OF LOWER E TX, WITH AN ELEVATED CU FIELD
PERSISTING OVER N LA/E TX ALONG/S OF I-20 THROUGH THE END OF THE TAF
PERIOD. A SCATTERED STRATOCU FIELD SHOULD DEVELOP BY MID/LATE
MORNING THURSDAY OVER PORTIONS OF DEEP E TX/NCNTRL LA, WITH ANY
BRIEF HIGH-BASED MVFR CIGS QUICKLY LIFTING/SCATTERING OUT INTO A CU
FIELD BY LATE MORNING/AFTERNOON. ISOLATED TO WIDELY SCATTERED
CONVECTION WILL BE POSSIBLE THURSDAY AFTERNOON OVER PORTIONS OF E
TX/SW AR/NW LA, JUST BEYOND THE SCOPE OF THIS TAF PERIOD. VRB WINDS
AROUND 5KTS THIS AFTERNOON WILL BECOME LT/VRB AFTER 00Z. /15/
SPOTTER INFORMATION STATEMENT
ISSUED AT 1226 AM CDT WED SEP 17 2025
SPOTTER ACTIVATION IS NOT EXPECTED OVER THE NEXT 24 HOURS.
PRELIMINARY POINT TEMPS/POPS
SHV 96 73 94 73 / 20 20 20 10
MLU 95 70 94 70 / 20 20 20 0
DEQ 94 66 92 66 / 20 20 20 20
TXK 96 70 95 70 / 20 20 20 10
ELD 94 68 93 68 / 20 20 20 0
TYR 94 70 91 70 / 20 20 20 10
GGG 95 69 93 69 / 20 20 20 10
LFK 95 70 93 69 / 20 20 20 0
SHV WATCHES/WARNINGS/ADVISORIES
AR...NONE.
LA...NONE.
OK...NONE.
TX...NONE.
DISCUSSION...20
AVIATION...15
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