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000
FXUS64 KEWX 062343
AFDEWX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
543 PM CST FRI DEC 6 2013

.AVIATION...
WE HAVE SEEN SCATTERING OF THE LOWER CLOUD DECK THIS AFTERNOON AND
VFR CIGS AT ALL THE TERMINALS. EXPECT MVFR CIGS TO MOVE BACK INTO
THE AUSTIN AND SAN ANTONIO AREAS WITHIN THE NEXT HOUR OR SO. THEN
THEY WILL STAY MVFR THROUGH THE END OF THE PERIOD. WINDS WILL STAY
OUT OF THE NORTH THROUGH THE PERIOD WITH WIND SPEED DROPPING
SATURDAY AFTERNOON.

DRT WILL REMAIN VFR OVERNIGHT WITH MVFR CIGS BUILDING BACK IN
SATURDAY MORNING FOR ONLY SEVERAL HOURS.

&&

.PREV DISCUSSION... /ISSUED 318 PM CST FRI DEC 6 2013/

SHORT TERM (TONIGHT THROUGH SATURDAY NIGHT)...
A SURGE OF COLDER...DRIER AIR WILL PUSH THROUGH THE REGION TONIGHT
AND SATURDAY. NO PRECIPITATION IS EXPECTED TONIGHT AS THE DRIER
SURFACE RIDGE BUILDS SOUTH. UNDER CLOUDY SKIES LOWS TONIGHT WILL
RANGE FROM THE UPPER TEENS NORTHERN HILL COUNTRY TO NEAR 30 SOUTHERN
TIER. A HARD FREEZE IS EXPECTED THROUGHOUT THE HILL COUNTRY TONIGHT.
SAN ANTONIO AND DEL RIO METROS MAY EXPERIENCE THEIR FIRST FREEZE OF
THE SEASON TONIGHT. CONTINUED UNSEASONABLY COLD SATURDAY. CLOUDY
WITH HIGHS SATURDAY RANGING FROM THE MID 20S NORTHERN HILLS TO NEAR
40 SOUTHWEST RIO GRANDE PLAINS. THE COLD SURGE INTO THE COASTAL
REGIONS TONIGHT AND SATURDAY IS EXPECTED TO INCREASE CYCLOGENESIS (A
LOW DEVELOPING IN LOWER LEVELS OF THE ATMOSPHERE) AS WEAK DISTURBANCES
TRACK NORTHEAST. THIS WILL IN TURN ENHANCE GULF MOISTURE OVERRUN
INTO EASTERN PORTIONS OF SOUTH CENTRAL TEXAS BEGINNING TOMORROW
NIGHT AND CONTINUING THROUGH SUNDAY MORNING. A WINTER WEATHER
ADVISORY MAY BE NEEDED LATE TOMORROW INTO EARLY SUNDAY...NEW DATA
WILL MORE CLEARLY DEFINE THE THREAT...SO STAY TUNED.

LONG TERM (SUNDAY THROUGH FRIDAY)...
AS DRIER WESTERLIES MIX DOWN SUNDAY...A WARMING TREND WILL
BEGIN. DAYTIME HIGHS WILL WARM INTO THE 50S OVER MUCH OF THE AREA BY
SUNDAY AFTERNOON WITH DECREASING CLOUDS FROM THE WEST. PRECIPITATION
SHOULD END OVER SOUTHEAST SECTIONS BY MIDDAY SUNDAY AS DRIER AIR
MIXES EASTWARD DURING THE DAY. INCREASING LOW CLOUDS SUNDAY NIGHT
AND MONDAY AS SHORT WAVE DISTURBANCES APPROACH FROM THE WEST.
ANOTHER STRONG COLD FRONT WILL ARRIVE MONDAY WITH A CHANCE OF RAIN
MAINLY EASTERN SECTIONS ALONG AND BEHIND THE FRONT. A SURGE OF COLD
ARCTIC AIR WILL PUSH INTO THE AREA MONDAY NIGHT WITH A SLIGHT CHANCE
OF LIGHT FREEZING RAIN AND SLEET OVER MUCH OF THE REGION. DECREASING
CLOUDS BUT CONTINUED COOL ON TUESDAY WITH HIGHS MOSTLY IN THE 40S.
PARTLY CLOUDY AND VERY COLD TUESDAY NIGHT WITH LOWS NEAR 20 HILLS TO
LOW 30S SOUTH. CONTINUED COOL WEDNESDAY WITH HIGHS IN THE 40S TO
NEAR 50. LOWS WEDNESDAY NIGHT MOSTLY IN THE 30S TO THE LOW 40S. BY
THURSDAY...AN APPROACHING TROUGH IN THE SUBTROPICAL JET WILL BRING A
SLIGHT CHANCE OF RAIN TO MUCH OF THE REGION. INCREASING GULF
MOISTURE WITH DISTURBANCES ALOFT THURSDAY NIGHT AND NEXT FRIDAY WITH
A CHANCE OF SHOWERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              23  30  24  50  34 /  10  10  20  10  10
AUSTIN BERGSTROM INTL AIRPORT  25  31  23  49  34 /  10  10  20  10  10
NEW BRAUNFELS MUNI AIRPORT     24  33  26  51  36 /  10  10  20  10  10
BURNET MUNI AIRPORT            19  26  19  50  31 /  10  10  20  10  10
DEL RIO INTL AIRPORT           28  40  26  53  36 /  10  10   0  -   10
GEORGETOWN MUNI AIRPORT        22  29  21  48  31 /  10  10  20  10  10
HONDO MUNI AIRPORT             29  37  24  54  37 /  10  10   0  -   10
SAN MARCOS MUNI AIRPORT        24  33  25  50  36 /  10  10  20  10  10
LA GRANGE - FAYETTE REGIONAL   27  33  28  48  38 /  10  20  30  10  20
SAN ANTONIO INTL AIRPORT       26  35  26  53  37 /  10  10  20  -   10
STINSON MUNI AIRPORT           28  36  26  53  38 /  10  10  20  10  10

&&

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

$$

MESOSCALE/AVIATION...05
SYNOPTIC/GRIDS...24
PUBLIC SERVICE/DATA COLLECTION...30