736
FXUS64 KSHV 181728 AAA
AFDSHV
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SHREVEPORT LA
1228 PM CDT FRI SEP 18 2026
..NEW AVIATION
KEY MESSAGES
ISSUED AT 1132 AM CDT FRI SEP 18 2026
- HIGH TEMPERATURES IN THE MIDDLE TO UPPER 90S WILL PREVAIL AGAIN
TODAY AND CONTINUE THROUGH THE WEEKEND AND INTO EARLY NEXT
WEEK, WITH MOSTLY DRY CONDITIONS EXPECTED THROUGHOUT.
- SLIGHT RAINFALL CHANCES MAY IMPACT NORTHERN AND WESTERN ZONES
EARLY NEXT WEEK.
- THE VERY SLIGHT COOLING TREND HAS SHIFTED LATER AGAIN, WITH
HIGHS ONLY IN THE LOW TO MIDDLE 90S LATE NEXT WEEK, AND MORE
OVERNIGHT LOWS IN THE 60S.
DISCUSSION
ISSUED AT 1132 AM CDT FRI SEP 18 2026
A CLOSED UPPER-LEVEL HIGH CONTINUES TO MEANDER WESTWARD OVER
NORTHEAST TX AT THE TIME OF WRITING. SYNOPTIC SUBSIDENCE WILL WORK
TO KEEP SHOWERS AT BAY. WHILE TEMPERATURES WILL STILL REMAIN IN THE
UPPER 90S THROUGH THE WEEKEND, DRIER AIR IS BEING USHERED IN BY
THE HIGH PRESSURE AND SHOULD HELP KEEP HEAT INDICES WELL BELOW
HEAT ADVISORY CRITERIA. RECENT SURFACE OBSERVATIONS ALREADY HAVE
REPORTED DEW POINTS IN THE 60S AT MOST SITES, WHICH IS MUCH SOONER
IN THE DAY COMPARED TO PREVIOUS DAYS. THIS RELATIVE COMFORT WILL
INCREASE PREEXISTING FIRE WEATHER CONCERNS AND DROUGHT CONDITIONS.
PEOPLE SHOULD MONITOR LOCAL OFFICIAL GUIDANCE ON ANY BURN BANS IN
PLACE. THE LOWER HUMIDITY WILL LUCKILY HELP COOL THINGS OFF
DURING THE EVENING HOURS, ALLOWING TEMPERATURES TO DROP IN THE LOW
70S INSTEAD OF THE UPPER 70S OF RECENT DAYS.
THE PATTERN CHANGE THAT HAS BEEN THE FOCUS OF RECENT DISCUSSION
CONTINUES TO SURPRISE. THE RIDGE OVER THE REGION IS STILL EXPECTED
TO WEAKEN DURING THE EARLY PART OF NEXT WEEK, LARGELY KEEPING THE
LOW IN THE NORTHERN PLAINS AT BAY. HOWEVER, BOTH THE EURO AND GFS'S
6Z RUN DEPICT A MID-LEVEL VORT MAX AROUND SOUTHEAST OK MONDAY
MORNING. SHOULD THIS VERIFY, THERE COULD BE ENOUGH FORCING TO
ORGANIZE SOME RAIN IN THE NORTHWEST PART OF THE REGION EVEN WITHOUT
THE INFLUENCE OF THE LOW UP NORTH. THE NBM HAS CONTINUED TO CUT BACK
ON RAIN COVERAGE BUT INCREASED THE EXISTING RAIN CHANCES ON MONDAY,
SUGGESTING SOME LEVEL OF INCREASING CONFIDENCE.
AFTER THE RAIN ON MONDAY, CONDITIONS REMAIN DRY FOR THE REST OF THE
FORECAST PERIOD. BUT THE LOW MOVING THROUGH THE NORTHERN PLAINS IS
EXPECTED TO CONTINUE TOWARD THE MIDWEST BY MIDWEEK AND HOPEFULLY
USHER IN SOME SLIGHTLY COOLER TEMPERATURES. EVEN IF FALL ISN'T HERE
YET, TEMPERATURES IN THE LOW 90S WILL CERTAINLY BE BETTER THAN
TRIPLE DIGITS.
57
AVIATION
(18Z TAFS)
ISSUED AT 1228 PM CDT FRI SEP 18 2026
VFR CONDITIONS WILL CONTINUE THROUGH THE 18/18Z TAF PERIOD. A
SCATTERED CU FIELD HAS DEVELOPED ACROSS MUCH OF E TX/SE
OK/ADJACENT SW AR, WITH A WEAKER CU FIELD EVIDENT FARTHER E
ACROSS SRN AR/N LA, BUT WILL DIMINISH AROUND/SHORTLY AFTER SUNSET.
SKC WILL PREVAIL TONIGHT, WITH AN ADDITIONAL SCATTERED CU FIELD
DEVELOPING ACROSS THESE SAME AREAS BY LATE MORNING/MIDDAY
SATURDAY. ESE WINDS 4-6KTS THIS AFTERNOON WILL BECOME LT/VRB AFTER
00Z. /15/
SPOTTER INFORMATION STATEMENT
ISSUED AT 1132 AM CDT FRI SEP 18 2026
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
PRELIMINARY POINT TEMPS/POPS
SHV 72 98 74 98 / 0 0 0 0
MLU 71 99 74 99 / 0 0 0 0
DEQ 68 97 68 97 / 0 0 0 0
TXK 71 98 73 98 / 0 0 0 0
ELD 70 99 72 99 / 0 0 0 0
TYR 71 97 72 97 / 0 0 0 0
GGG 70 99 71 99 / 0 0 0 0
LFK 69 94 71 94 / 0 0 0 0
SHV WATCHES/WARNINGS/ADVISORIES
AR...NONE.
LA...NONE.
OK...NONE.
TX...NONE.
DISCUSSION...57
AVIATION...15
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