787
FXUS64 KEWX 130606
AFDEWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
106 AM CDT SUN SEP 13 2026
..NEW SHORT TERM, LONG TERM, AVIATION
KEY MESSAGES
UPDATED AT 1245 AM CDT SUN SEP 13 2026
- HEAT ADVISORY IN EFFECT NOON THROUGH 7 PM FOR AREAS GENERALLY
ALONG AND EAST OF THE INTERSTATE 35 CORRIDOR. ABOVE NORMAL
TEMPERATURES WILL PERSIST INTO EARLY NEXT WEEK, WITH ADDITIONAL
HEAT HEADLINES POSSIBLE.
- DAILY SEA BREEZE THUNDERSTORM CHANCES IN THE COASTAL PLAINS
THROUGH THE REST OF NEXT WEEK.
- HUMID MORNING CONDITIONS AND ABOVE AVERAGE TEMPERATURES AND
PEAK HEAT INDICES WILL CONTINUE INTO NEXT WEEKEND.
SHORT TERM
(TODAY THROUGH MONDAY)
ISSUED AT 1245 AM CDT SUN SEP 13 2026
THE RIDGE CURRENTLY IMPACTING OUR AREA WILL MOVE OVER NORTH TEXAS
TODAY THUS KEEPING RAIN CHANCES LOW ONCE AGAIN. THE MAIN EXCEPTION
WOULD BE FOR THE COASTAL PLAINS. HIGHS SHOULD BE A DEGREE OR TWO TODAY
BUT COULD STILL SUPPORT HEAT ADVISORY CONDITIONS ONCE AGAIN OVER
THE I-35 CORRIDOR AND COASTAL PLAINS. EXPECT NEARLY IDENTICAL
CONDITIONS FOR MONDAY AS THE HIGH CONTINUES TO ELONGATE AND PUSH
OFF TO THE NORTH AND EAST. THIS SHOULD ALLOW MOST OF THE AREA TO
CONTINUE TO SEE HIGH TEMPERATURES IN THE UPPER 90S TO NEAR 103
DEGREES PARTICULARLY ACROSS THE SOUTHERN PART OF THE AREA.
ADDITIONALLY WE COULD SEE SOME VERY ISOLATED SHOWERS AND
THUNDERSTORMS FORM ACROSS THE COASTAL PLAINS WITH THE CONTINUED
SEABREEZE.
LONG TERM
(MONDAY NIGHT THROUGH SATURDAY)
ISSUED AT 1245 AM CDT SUN SEP 13 2026
AN UPPER LEVEL RIDGE WILL CONTINUE TO BE CENTERED NORTHEAST OF
OUR AREA THROUGH AT LEAST THE MIDDLE OF NEXT WEEK, AND BEGAN
EXPANDING FURTHER WEST LATER IN THE WEEK. HIGHS ONCE MORE WILL
CONTINUE TO RANGE FROM THE MIDDLE 90S TO JUST ABOVE 100 DEGREES
EACH DAY THROUGH THE MIDDLE OF NEXT WEEK. HEAT INDICES WILL
CONTINUE HOVERING AROUND THE 105-108 DEGREE MARK NEAR THE I-35
CORRIDOR AND COASTAL PLAINS. SEABREEZE SHOWERS AND THUNDERSTORMS
COULD IMPACT THE COASTAL PLAINS EVERY AFTERNOON INTO THE EVENING.
MOST OTHER LOCATIONS SHOULD SEE MAINLY DRY CONDITIONS. TOWARDS THE
END OF THE FORECAST PERIOD MODELS ARE HINTING AT A PATTERN SHIFT
WHICH WOULD FINALLY DROP TEMPERATURE BELOW 100 DEGREES AND PERHAPS
SEE BETTER CHANCES FOR RAIN COVERAGE OVER THE AREA. MODELS
CONTINUE TO DISAGREE ON HOW THIS OCCURS SO CONTINUE TO CHECK BACK
AS WE GET CLOSER AND MODELS HOPEFULLY COME INTO BETTER AGREEMENT.
AVIATION
(06Z TAFS)
ISSUED AT 1245 AM CDT SUN SEP 13 2026
MORNING LOW CLOUDINESS WAS MORE AGGRESSIVE THAN FROM RECENT DAYS
AS THE ONSHORE FLOW MAY HAVE BEEN ENHANCED BY AN INVERTED TROUGH
OVER MEXICO UNDERCUTTING A BROAD RIDGE OVER THE CENTRAL CONUS.
THIS GENERAL PATTERN REMAINS INTACT FOR TODAY, SO WILL FOLLOW THE
PERSISTENCE TREND WITH THE 3 I-35 SITES. WINDS WILL ALSO REMAIN
DIURNALLY CONSISTENT WITH THOSE OF SATURDAY WITH SOME SE GUSTS TO
AROUND 25 KNOTS IN THE EARLY EVENING. MORE LOW STRATUS ARE
SCHEDULED FOR MONDAY MORNING.
PRELIMINARY POINT TEMPS/POPS
AUSTIN CAMP MABRY 78 101 77 101 / 0 10 0 0
AUSTIN BERGSTROM INTL AIRPORT 77 100 77 100 / 0 10 0 0
NEW BRAUNFELS MUNI AIRPORT 77 99 75 100 / 0 10 0 0
BURNET MUNI AIRPORT 76 97 74 97 / 0 0 0 0
DEL RIO INTL AIRPORT 78 100 78 101 / 0 0 0 0
GEORGETOWN MUNI AIRPORT 77 100 76 100 / 0 0 0 0
HONDO MUNI AIRPORT 76 100 74 100 / 0 0 0 0
SAN MARCOS MUNI AIRPORT 76 100 75 100 / 0 10 0 0
LA GRANGE - FAYETTE REGIONAL 77 100 77 100 / 0 30 0 10
SAN ANTONIO INTL AIRPORT 78 99 77 99 / 10 0 0 0
STINSON MUNI AIRPORT 78 101 77 101 / 0 0 0 0
EWX WATCHES/WARNINGS/ADVISORIES
HEAT ADVISORY FROM NOON TODAY TO 7 PM CDT THIS EVENING FOR
TXZ173-191>194-205>209-220>225.
SHORT TERM...CJM
LONG TERM....CJM
AVIATION...18
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