952
FXUS64 KEWX 172344
AFDEWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
544 PM CST TUE DEC 17 2024
..NEW AVIATION
SHORT TERM
(TONIGHT THROUGH WEDNESDAY NIGHT)
ISSUED AT 200 PM CST TUE DEC 17 2024
KEY MESSAGES:
- WARM AND HUMID CONDITIONS CONTINUE FOR ONE MORE NIGHT. THERE IS A
60% CHANCE OF DENSE FOG WEDNESDAY MORNING ACROSS THE COASTAL PLAINS.
- A COLD FRONT WILL MOVE THROUGH THE REGION DURING THE FIRST HALF OF
THE DAY WEDNESDAY WITH A 20-50% CHANCE OF BRIEF SHOWERS ALONG IT.
- BREEZY, COOLER AND DRIER CONDITIONS FORECAST BEHIND THE FRONT WITH
A LIGHT FREEZE FORECAST ACROSS THE HILL COUNTRY THURSDAY MORNING
ONE MORE NIGHT OF UNSEASONABLY WARM AND HUMID CONDITIONS ACROSS
SOUTH-CENTRAL TEXAS. CONFIDENCE IS RELATIVELY HIGH (60%) THAT DENSE
FOG WILL DEVELOP AGAIN ACROSS THE COASTAL PLAINS EARLY WEDNESDAY
MORNING. AFTER COORDINATION WITH SURROUNDING OFFICES WE HAVE ELECTED
TO ISSUE A DENSE FOG ADVISORY FOR LATE TONIGHT/WEDNESDAY MORNING FOR
FAYETTE, GONZALES, LAVACA, DEWITT, AND KARNES COUNTIES. FOG
DEVELOPMENT IS ALSO LIKELY FARTHER INLAND, TOWARD THE I-35 CORRIDOR
AND SOUTHERN RIO GRANDE, BUT AT THE MOMENT CONFIDENCE IN DENSE FOG
IN THIS AREA IS LOWER THAN THE COASTAL PLAINS.
THE COLD FRONT IS ON TRACK TO MOVE THROUGH THE HILL COUNTRY AND
SOUTHERN EDWARDS PLATEAU BETWEEN 6-9A WEDNESDAY, THE NORTHERN RIO
GRANDE AND I-35 CORRIDOR 9A-12P, AND COASTAL PLAINS 11A-2P. HREF IS
INDICATING A BROKEN, THIN BAND OF SHOWERS ALONG THE LEADING EDGE OF
THE FRONT. CLEAR AND DRY POST FRONTAL CONDITIONS ARE EXPECTED TO
DEVELOP IN THE AFTERNOON ALONG WITH BREEZY CONDITIONS. WIND GUSTS UP
TO 30 MPH ARE INDICATED.
LONG TERM
(THURSDAY THROUGH TUESDAY)
ISSUED AT 200 PM CST TUE DEC 17 2024
DRY AND COOL WEATHER CONDITIONS CONTINUE IN THE WAKE OF WEDNESDAY'S
COLD FRONT WITH TODAY'S HIGHS IN THE 60S ACROSS MOST LOCATIONS.
SKIES ARE FORECAST TO STAY SUNNY THROUGHOUT THE DAY AND NIGHT.
OVERNIGHT LOWS ARE FORECAST TO RANGE FROM THE 40S AND 50S. BY
FRIDAY, AN UPPER LEVEL SHORT WAVE PASSES THROUGH THE LOCAL AREA
WHILE AT THE SURFACE, A WEAK AND DRY COLD FRONT PUSHES THROUGH SOUTH
CENTRAL TEXAS. FRIDAY'S HIGHS ARE FORECAST TO STAY IN THE 60S OVER
MOST PLACES. OVERNIGHT LOWS ARE FORECAST TO RANGE FROM THE MID 30S
ACROSS THE HILL COUNTRY, LOWER 40S OVER PARTS OF THE I-35 CORRIDOR
AND COASTAL PLAINS AND UPPER 40S ALONG THE RIO GRANDE. THE UPCOMING
WEEKEND LOOKS DRY WITH SEASONAL TEMPERATURES WITH HIGHS IN THE 60S
AND SUNDAY'S LOWS IN THE 40S AND LOWER 50S. BY MONDAY, SURFACE
SOUTHERLY FLOW INCREASES AHEAD OF THE NEXT COLD FRONT WHICH IS
FORECAST TO PUSH ACROSS THE LOCAL AREA ON TUESDAY AFTERNOON INTO THE
EVENING. LIGHT SHOWERS ARE POSSIBLE AHEAD OF THE FRONTAL PASSAGE
THROUGHOUT THE DAY ON TUESDAY. THE BETTER CHANCES FOR RAIN ARE
FORECAST FOR AREAS ALONG AND EAST OF HIGHWAY 77.
AVIATION
(00Z TAFS)
ISSUED AT 535 PM CST TUE DEC 17 2024
ALL TERMINALS ARE VFR TO START THIS PERIOD. VFR CONDITIONS WILL
PREVAIL THROUGH THE EVENING. LOW CLOUDS WILL DEVELOP AROUND MIDNIGHT
IN THE AUSTIN AND SAN ANTONIO AREAS, BUT NOT UNTIL NEAR SUNRISE AT
DRT. ALL AIRPORTS WILL DROP TO IFR/LIFR BEFORE A COLD FRONT MOVES
THROUGH THE REGION DURING THE LATE MORNING. WINDS WILL SHIFT TO THE
NORTH/NORTHWEST CLEARING SKIES. WIND SPEEDS WILL INCREASE TO 10-15
KTS WITH GUSTS UP TO 25 KTS DURING THE AFTERNOON.
PRELIMINARY POINT TEMPS/POPS
AUSTIN CAMP MABRY 66 67 38 65 / 0 40 0 0
AUSTIN BERGSTROM INTL AIRPORT 66 68 35 65 / 0 50 0 0
NEW BRAUNFELS MUNI AIRPORT 65 70 39 67 / 0 40 0 0
BURNET MUNI AIRPORT 60 64 35 65 / 10 30 0 0
DEL RIO INTL AIRPORT 62 70 42 69 / 0 20 0 0
GEORGETOWN MUNI AIRPORT 63 66 34 64 / 10 40 0 0
HONDO MUNI AIRPORT 64 69 38 67 / 0 30 0 0
SAN MARCOS MUNI AIRPORT 65 69 37 65 / 0 50 0 0
LA GRANGE - FAYETTE REGIONAL 64 70 37 64 / 0 50 0 0
SAN ANTONIO INTL AIRPORT 66 69 41 66 / 0 40 0 0
STINSON MUNI AIRPORT 66 71 42 67 / 0 40 0 0
EWX WATCHES/WARNINGS/ADVISORIES
DENSE FOG ADVISORY FROM 3 AM TO 9 AM CST WEDNESDAY FOR DE WITT-
FAYETTE-GONZALES-KARNES-LAVACA.
SHORT-TERM...76
LONG-TERM...17
AVIATION...05
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