996
FXUS64 KSHV 221815
AFDSHV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
115 PM CDT WED JUL 22 2026
..NEW AVIATION
KEY MESSAGES
ISSUED AT 1248 AM CDT WED JUL 22 2026
- AN APPROACHING FRONTAL BOUNDARY WILL AMPLIFY HAZARDOUS HEAT
MOSTLY ALONG AND SOUTH OF I-20 THROUGH WEDNESDAY, PROMPTING THE
ISSUANCE OF MULTIPLE HEAT SAFETY WARNINGS.
- SLIGHTLY COOLER AIR AND SOME ISOLATED RAIN CHANCES (FOR EASTERN
PARISHES) WILL OFFER A BRIEF RETURN TO NEAR-NORMAL SUMMERTIME
HEAT (MID-TO-UPPER 90S) THROUGH THE END OF THE WEEK INTO THE
WEEKEND.
- HAZARDOUS HEAT RETURNS BY EARLY NEXT WEEK.
DISCUSSION
ISSUED AT 1248 AM CDT WED JUL 22 2026
RIDGING WILL CONTINUE AS THE PRIMARY DRIVER OF WEATHER CONDITIONS
THROUGH THE NEXT WEEK ACROSS THE FOUR STATE REGION WITH SOME
BRIEF VARIATIONS DUE TO THE EVOLUTIONS OF ITS PERIPHERY. THIS
EVOLUTION WILL OCCUR FIRST IN THE FORM OF A DRY FRONTAL BOUNDARY
THAT SLOWLY DRIFTS IN FROM THE NORTH, BOOSTING THE EFFICIENCY OF
INSOLATION AND DAYTIME HEATING VIA COMPRESSIONAL HEATING. THIS HAS
PROMPTED ISSUANCE OF BOTH A HEAT ADVISORY AND EXTREME HEAT
WARNING ACROSS THE SOUTHERN TWO-THIRDS OF THE AREA. NORTHERLY
WINDS WILL CONTINUE UNTIL FRIDAY AS THE WEAK FRONTAL BOUNDARY
RETURNS BACK NORTH AS A WARM FRONT, QUICKLY REINTRODUCING THE
70-DEGREE ISODROSOTHERM AND GRADUALLY SETTING THE STAGE FOR
HAZARDOUS HEAT TO RETURN AS GULF MOISTURE RE-MOISTENS THE
ATMOSPHERIC COLUMN. SOME ISOLATED SHOWERS AND THUNDERSTORMS COULD
STILL FORM BY THURSDAY/FRIDAY AFTERNOONS, BUT THEY WILL BE THE
MAIN WINDOWS OF ANY RAIN CHANCES IN THE NEXT SEVEN DAYS AS THE DAY
1-7 WPC QPF VALUES SUGGEST MOST LIKELY RAINFALL AMOUNTS OF LESS
THAN 0.25 INCHES AREAWIDE. LONG-RANGE GUIDANCE ALSO SUGGESTS THAT
RIDGING WILL BUILD BACK EASTWARD FROM THE SOUTHERN GREAT PLAINS TO
REINTRODUCE HAZARDOUS HEAT POTENTIAL THROUGH MOST OF THE REST OF
THE MONTH.
WITH DEW POINTS EXPECTED TO REMAIN MOSTLY IN THE LOW-TO-MID 70S
THROUGH THIS TIME AND HEAT INDICES RANGING AT 105-115 DEGREES,
HAZARDOUS HEAT WILL BE IMPACTFUL FOR ALL GROUPS OF PEOPLE AND NOT
JUST HEAT-SENSITIVE GROUPS TODAY. PRECAUTIONS AND AWARENESS ARE
ENCOURAGED TO CONTINUE NOW AGAINST THE ELEVATED POTENTIAL FOR HEAT
ILLNESSES. THIS INCLUDES (AND IS NOT LIMITED TO) ALTERING OUTDOOR
PLANS, TAKING FREQUENT BREAKS IF YOU MUST BE OUTSIDE, CHECKING THE
BACKSEAT OF YOUR VEHICLE, AND KNOWING THE SIGNS AND SYMPTOMS OF
HEAT EXHAUSTION IN ADDITION TO HEAT STROKE.
AVIATION
(18Z TAFS)
ISSUED AT 1240 PM CDT WED JUL 22 2026
FOR THE ARKLATEX TERMINALS, N/NE WINDS AND VFR CONDITIONS
EXPECTED TO PREVAIL AREAWIDE THROUGHOUT THE PERIOD. SCTVBKN
CLOUDS CURRENTLY ACROSS PORTIONS OF OUR EASTERN TERMINALS WILL
SCATTER AND LIFT THIS AFTERNOON. OTHERWISE, EXPECT MOSTLY CLEAR
SKIES AND WIND SPEEDS OF 7-13G20KTS TO CONTINUE. WIND GUSTS WILL
RELAX OVERNIGHT AND MVFR CIGS RETURN 12Z TO 17Z FOR MOST. /24/BOO/
SPOTTER INFORMATION STATEMENT
ISSUED AT 1248 AM CDT WED JUL 22 2026
SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT. EXERCISE
CAUTION FOR HAZARDOUS HEAT WITH ANY OUTDOOR ACTIVITY TODAY. /16/
PRELIMINARY POINT TEMPS/POPS
SHV 100 77 95 77 / 0 0 10 0
MLU 98 77 95 77 / 10 0 30 10
DEQ 97 72 92 73 / 0 0 0 0
TXK 99 74 95 75 / 0 0 0 0
ELD 97 73 93 74 / 0 0 10 10
TYR 103 76 97 77 / 0 0 0 0
GGG 102 76 96 77 / 0 0 0 0
LFK 103 78 96 78 / 0 0 10 10
SHV WATCHES/WARNINGS/ADVISORIES
AR...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR ARZ070>073.
LA...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR LAZ004-006.
EXTREME HEAT WARNING UNTIL 8 PM CDT THIS EVENING FOR LAZ001>003-
005-010>014-017>022.
OK...NONE.
TX...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR TXZ096-097-108>112.
EXTREME HEAT WARNING UNTIL 8 PM CDT THIS EVENING FOR TXZ124>126-
136>138-149>153-165>167.
DISCUSSION...16
AVIATION...24
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page