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000
FXUS64 KEWX 130600
AFDEWX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1200 AM CST FRI DEC 13 2013

.AVIATION...
CIGS WILL BE SLIGHTLY LOWER THAN EARLIER FORECASTED DURING PARTS
OF THE 13/06Z TAF PERIOD. VFR CIGS BKN-0VC035-050 WILL SPREAD
ACROSS THE REMAINDER OF SOUTH CENTRAL TEXAS IN THE NEXT COUPLE OF
HOURS. MVFR CIGS/VSBYS AND ISOLD SHRA WILL DEVELOP OVER THE HILL
COUNTRY DURING THE OVERNIGHT HOURS AND SPREAD ACROSS THE REMAINDER
OF SOUTH CENTRAL TEXAS FRIDAY MORNING. SHRA WILL BECOME A LITTLE
MORE NUMEROUS EAST OF A KJCT TO KHDO TO KPEZ LINE ON FRIDAY AS AN
UPPER LEVEL TROUGH MOVES ACROSS TEXAS. HAVE MAINTAINED PROB30S FOR
THE I-35 TAF SITES FROM MID MORNING TO MID AFTERNOON. THE TROUGH
ALONG WITH THE SHOWERS AND CLOUDS MOVES OFF TO THE EAST FRIDAY
EVENING LEADING TO VFR SKIES OUT WEST IN LATE AFTERNOON AND IN
THE EAST DURING THE EVENING. S TO SE WINDS 4 TO 10 KTS WILL BECOME
SW FRIDAY EVENING AND W FRIDAY NIGHT.

&&

.PREV DISCUSSION... /ISSUED 600 PM CST THU DEC 12 2013/

AVIATION...
VFR SKIES WILL PREVAIL THROUGH THE 13/00Z TAF PERIOD. CIGS AT
BKN-OVC035-050 DEVELOPING ACROSS THE AREA THIS EVENING WITH ISOLD
SHRA DEVELOPING MAINLY OVER THE HILL COUNTRY OVERNIGHT N-NW OF TAF
SITES AS AN UPPER LEVEL TROUGH APPROACHES. ISOLD TO SCT SHRA CAN
BE EXPECTED FRIDAY AS THE UPPER LEVEL TROUGH MOVES ACROSS THE AREA
WITH TEMPO MVFR CIGS/VSBYS. WILL MAINTAIN MENTION AT THE I-35 TAF
SITES. UPPER LEVEL TROUGH MOVES EAST LEADING TO CLEARING SKIES
FRIDAY AFTERNOON WEST AND EVENING EAST. WINDS WILL BECOME S-SE AT
4 TO 8 KTS AT TAF SITES TONIGHT...THEN TURN TO SW FRIDAY EVENING.

PREV DISCUSSION... /ISSUED 300 PM CST THU DEC 12 2013/

SHORT TERM (TONIGHT THROUGH FRIDAY NIGHT)...
MID TO UPPER LEVEL CLOUDS ARE COVERING ALL OF SOUTH CENTRAL TEXAS
THIS AFTERNOON AS SOUTHWEST FLOW ALOFT PUSHES MOISTURE ACROSS THE
AREA. THESE CLOUDS WILL LINGER AROUND THROUGH FRIDAY AS AN UPPER
LEVEL TROUGH TRAVELS FROM THE DESERT SOUTHWEST INTO THE SOUTHERN
PLAINS. AT LOWER LEVELS...VISIBLE SATELLITE IMAGES ARE DEPICTING
BROKEN TO OVERCAST SKIES PUSHING TO THE NORTH-NORTHEAST ACROSS THE RIO
GRANDE VALLEY WHILE SPREADING NORTHEASTWARD TOWARD THE SAN ANTONIO
AREA. LATEST RUC SOLUTION HAS THIS LOW LEVEL CLOUD DECK SPREADING
ACROSS MOST AREAS OF SOUTH CENTRAL TEXAS BY MIDNIGHT. OVERNIGHT
LOWS WILL RANGE FROM THE MID TO UPPER 30S HILL COUNTRY TO LOWER
40S REST OF THE AREA. LATE TONIGHT INTO FRIDAY...CHANCES OF RAIN
WILL BE INCREASING AS THE UPPER LEVEL TROUGH ABOVE MENTIONED NEARS
THE SOUTHERN PLAINS. EXPECT SHOWERS TO AFFECT THE NORTHWEST AND
NORTHERN SECTIONS OF SOUTH CENTRAL TEXAS OVERNIGHT WITH SHOWERS
SPREADING EASTWARD ON FRIDAY. RAIN CHANCES WILL COME TO AN END
LATE FRIDAY AS THE UPPER TROUGH PUSHES TO THE EAST. RAINFALL
AMOUNTS WILL GENERALLY BE FROM A FEW HUNDREDTHS TO ONE QUARTER
INCH...ESPECIALLY ACROSS THE NORTHEAST PART OF THE HILL COUNTRY.

LONG TERM (SATURDAY THROUGH THURSDAY)...
A DRY COLD FRONT IS EXPECTED TO PUSH ACROSS SOUTH CENTRAL TEXAS
ON SATURDAY WITH SKIES CLEARING FROM WEST TO EAST BY THE AFTERNOON.
MODERATE NORTHWESTERLY WINDS ARE EXPECTED IN THE WAKE OF THE FRONT
WITH WIND SPEEDS DECREASING LATE SATURDAY INTO SUNDAY. SEVERAL
COOL NIGHTS ARE EXPECTED IN THE WAKE OF THE FRONTAL PASSAGE WITH
OVERNIGHT LOWS IN THE LOWER 30S OVER THE HILL COUNTRY AND MID 30S
REST OF THE AREA ON SUNDAY WITH SIMILAR LOWS MONDAY MORNING.
A NORTHWEST TO ZONAL FLOW ALOFT IS ANTICIPATED FOR MUCH OF NEXT
WEEK WITH DRY AND WARMING WEATHER CONDITIONS IN STORE THROUGH
THURSDAY OF NEXT WEEK. LATEST GFS AND ECMWF SOLUTIONS CONTINUE TO
SHOW ANOTHER ARCTIC AIRMASS ARRIVING TO THE LOCAL AREA BETWEEN
SATURDAY AND SUNDAY...DECEMBER 21 AND 22.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              39  56  44  55  33 /  10  40  20  10  -
AUSTIN BERGSTROM INTL AIRPORT  37  58  42  56  32 /  10  40  20  10  -
NEW BRAUNFELS MUNI AIRPORT     40  58  44  57  33 /  10  30  20  10  -
BURNET MUNI AIRPORT            37  56  40  52  30 /  20  40  10  -   -
DEL RIO INTL AIRPORT           40  63  41  60  34 /  10  10  -    0  -
GEORGETOWN MUNI AIRPORT        37  56  42  52  31 /  20  40  20  10  -
HONDO MUNI AIRPORT             40  60  43  61  32 /  10  30  10  -   -
SAN MARCOS MUNI AIRPORT        39  59  44  57  33 /  10  40  20  10  -
LA GRANGE - FAYETTE REGIONAL   41  60  47  57  33 /  10  40  30  10  -
SAN ANTONIO INTL AIRPORT       41  58  45  59  34 /  10  30  20  -   -
STINSON MUNI AIRPORT           43  60  46  61  35 /  10  30  20  10  -

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

MESOSCALE/AVIATION...04
SYNOPTIC/GRIDS...18