593
FXUS64 KEWX 172038
AFDEWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
238 PM CST TUE DEC 17 2024
..NEW SHORT TERM, LONG TERM
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
(18Z TAFS)
ISSUED AT 1133 AM CST TUE DEC 17 2024
CEILINGS WILL CONTINUE TO RISE THROUGH THE AFTERNOON, WITH VFR
CONDITIONS DEVELOPING AREAWIDE THIS AFTERNOON THROUGH THE EVENING
HOURS. SCATTERED SHRA ACTIVITY FROM NEAR UVA TO ECU IS ALSO EXPECTED
TO THIN IN COVERAGE AND END LATER THIS AFTERNOON. LOW STRATUS AND FOG
DEVELOPMENT IS FORECAST AGAIN LATE TONIGHT, DEVELOPING NEAR THE I-35
CORRIDOR AROUND 06Z AND EXPANDING INTO THE COASTAL PLAINS AND HILL
COUNTRY BY 09Z AND INTO THE RIO GRANDE AROUND 12Z. LIFR TO IFR
CONDITIONS ARE EXPECTED. A COLD FRONT WILL MOVE THROUGH THE REGION
MID TO LATE MORNING WEDNESDAY. A THIN, BROKEN LINE OF SHRAS IS
INDICATED BY SEVERAL HREF MEMBERS. EXPECT IMPROVING CONDITIONS
BEHIND THE COLD FRONT WITH GUSTY N WINDS DEVELOPING.
PRELIMINARY POINT TEMPS/POPS
AUSTIN CAMP MABRY 65 67 38 65 / 0 40 0 0
AUSTIN BERGSTROM INTL AIRPORT 64 68 35 65 / 0 50 0 0
NEW BRAUNFELS MUNI AIRPORT 65 70 39 67 / 0 40 0 0
BURNET MUNI AIRPORT 59 64 35 65 / 10 30 0 0
DEL RIO INTL AIRPORT 61 70 42 69 / 0 20 0 0
GEORGETOWN MUNI AIRPORT 62 66 34 64 / 10 40 0 0
HONDO MUNI AIRPORT 64 69 38 67 / 0 30 0 0
SAN MARCOS MUNI AIRPORT 63 69 37 65 / 0 50 0 0
LA GRANGE - FAYETTE REGIONAL 64 70 37 64 / 0 50 0 0
SAN ANTONIO INTL AIRPORT 65 69 41 66 / 0 40 0 0
STINSON MUNI AIRPORT 65 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...76
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