448
FXUS64 KEWX 121447
AFDEWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
847 AM CST FRI DEC 12 2025
..NEW UPDATE
KEY MESSAGES
- AREAS OF DENSE FOG COASTAL PLAINS TO THE I-35 CORRIDOR THROUGH
MID MORNING.
- TEMPERATURES UP AND DOWN SEVERAL TIMES OVER THE NEXT SEVEN DAYS.
- LOW TO MEDIUM CHANCES (20 TO 40 PERCENT) OF RAIN FOR THE COASTAL
PLAINS SATURDAY AND FOR THE RIO GRANDE SUNDAY, OTHERWISE DRY
CONDITIONS FOR THE NEXT SEVEN DAYS.
UPDATE
ISSUED AT 843 AM CST FRI DEC 12 2025
DECIDED TO EXTEND THE DENSE FOG ADVISORY FOR ANOTHER HOUR UNTIL
10 AM AS MANY AREAS ARE STILL SHOWING VISIBILITIES OF A 1/4 MILE
OR LESS. EXPECTING VISIBILITIES TO GREATLY IMPROVE ONCE SOUTHERLY
WINDS START TO PICK BACK UP THUS ERODING THE FOG WHICH WE ARE
STARTING TO SEE HAPPEN ACROSS PARTS OF THE COASTAL PLAINS.
SHORT TERM
(TODAY THROUGH SATURDAY)
ISSUED AT 1218 AM CST FRI DEC 12 2025
LOW LEVEL MOIST AIR IS RETURNING TO SOUTH-CENTRAL TEXAS. DEWPOINT
TEMPERATURES OVER THE COASTAL PLAINS ARE 15-20 DEGREES HIGHER THAN
24 HOURS AGO. MOIST AIR WILL CONTINUE TO MOVE TOWARD THE NORTHWEST
TODAY WITH SOUTHEASTERLY WINDS. THE MAIN QUESTIONS WILL BE IF
THERE WILL BE FOG, HOW FAR INLAND WILL IT REACH, AND HOW LOW THE
VISIBILITY WILL BE? WE SHOULD SEE AT LEAST PATCHY FOG OVER THE
COASTAL PLAINS. IT WILL PROBABLY REACH THE SAN ANTONIO AREA, BUT
NOT AUSTIN. THERE MAY BE SOME SPOTS WITH DENSE FOG, AND WE MAY
NEED TO ISSUE A DENSE FOG ADVISORY BY MORNING. FOG MAY HAVE AN
AFFECT ON TEMPERATURES LATER TODAY. HIGHS TODAY WILL CERTAINLY BE
WARMER THAN YESTERDAY, BUT THEY SHOULD BE KEPT LOWER WHERE THERE
IS FOG LATER IN THE MORNING. FAIR WEATHER WILL CONTINUE TONIGHT.
WE DON'T EXPECT A REPEAT OF FOGGINESS WITH A LITTLE MORE WIND
KEEPING THINGS MIXED. LOW TEMPERATURES WILL BE WARMER WITH
CONTINUED WARM ADVECTION. SATURDAY THE SOUTHEASTERLY LOW LEVEL
FLOW WILL CONTINUE, AND THERE MAY BE ENOUGH ISENTROPIC LIFT TO
PRODUCE LIGHT RAIN OVER THE COASTAL PLAINS BEFORE NOON. POPS WILL
BE 15%-20%. HIGH TEMPERATURES WILL BE WELL ABOVE NORMAL AND A FEW
SPOTS ACROSS THE SOUTH COULD REACH 80.
LONG TERM
(SATURDAY NIGHT THROUGH THURSDAY)
ISSUED AT 1218 AM CST FRI DEC 12 2025
ON SUNDAY THE NEXT COLD FRONT WILL WILL MOVE THROUGH. THERE MAY
BE ENOUGH MOISTURE IN THE RIO GRANDE REGION TO GENERATE SOME
SHOWERS OR EVEN A THUNDERSTORM, BUT CHANCES ARE ONLY 20%-40%
DURING THE DAY. THERE WILL BE BREEZY NORTHEASTERLY WINDS BEHIND
THE FRONT SUNDAY AFTERNOON. TEMPERATURES WILL BE COOLER AGAIN
SUNDAY AND MONDAY. TUESDAY AN UPPER LEVEL SHORTWAVE TROUGH WILL
MOVE OVER THE REGION. THE BLENDED MODEL SOLUTION IS STILL DRY AS
THIS FEATURE PASSES. YESTERDAY THE DETERMINISTIC GLOBAL MODELS
WERE SHOWING SOME RAIN, BUT THEY HAVE TRENDED DRIER. TEMPERATURES
WILL WARM OVER THE LAST FEW DAYS OF THE FORECAST REACHING WELL
ABOVE NORMAL BY THURSDAY.
AVIATION
(12Z TAFS)
ISSUED AT 515 AM CST FRI DEC 12 2025
VLIFR CONDITIONS AT AND AROUND THE I-35 SITES WILL GRADUALLY LIFT
THIS MORNING AND BECOME VFR BY LATE AFTERNOON WHILE KDRT REMAINS
VFR. IFR CIGS DEVELOP OVERNIGHT INTO SATURDAY MORNING AT ALL
SITES. LIGHT WINDS OF 7 KTS OR LESS PREVAIL WITH A FEW GUSTS TO
12 KTS LATE MORNING THROUGH EVENING POSSIBLE.
PRELIMINARY POINT TEMPS/POPS
AUSTIN CAMP MABRY 74 56 73 48 / 0 10 10 10
AUSTIN BERGSTROM INTL AIRPORT 73 57 74 48 / 0 10 10 10
NEW BRAUNFELS MUNI AIRPORT 72 57 75 50 / 0 10 10 10
BURNET MUNI AIRPORT 73 51 71 43 / 0 0 0 0
DEL RIO INTL AIRPORT 77 51 76 50 / 0 0 0 0
GEORGETOWN MUNI AIRPORT 74 54 73 45 / 0 10 0 10
HONDO MUNI AIRPORT 72 55 76 53 / 0 10 0 0
SAN MARCOS MUNI AIRPORT 73 57 75 49 / 0 10 10 10
LA GRANGE - FAYETTE REGIONAL 73 59 75 51 / 0 10 20 20
SAN ANTONIO INTL AIRPORT 72 59 76 54 / 0 10 10 0
STINSON MUNI AIRPORT 72 61 77 56 / 0 10 10 0
EWX WATCHES/WARNINGS/ADVISORIES
DENSE FOG ADVISORY UNTIL 10 AM CST THIS MORNING FOR TXZ173-187-
189>194-203>209-218>225-228.
SHORT TERM...CJM
LONG TERM....CJM
AVIATION...17
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