Freeze Warning 2, NWS Austin/San Antonio, TX

524 
WWUS74 KEWX 120949
NPWEWX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
349 AM CST WED NOV 12 2014

FREEZING TEMPERATURES EXPECTED ACROSS MUCH OF THE NORTHERN HILL
COUNTRY THROUGH 9 AM CST THIS MORNING.

.IN THE WAKE OF YESTERDAYS STRONG COLD FRONT...TEMMPERATURES WILL
DIP TO THE FREEZING MARK BY SUNRISE THIS MORNING...AND THEN RISE
BACK ABOVE FREEZING BY 9 AM. 

TXZ171-172-184>186-188>190-121500-
/O.CON.KEWX.FZ.W.0002.000000T0000Z-141112T1500Z/
LLANO-BURNET-EDWARDS-REAL-KERR-GILLESPIE-KENDALL-BLANCO-
INCLUDING THE CITIES OF...LLANO...BURNET...ROCKSPRINGS...LEAKEY...
KERRVILLE...FREDERICKSBURG...BOERNE...BLANCO
349 AM CST WED NOV 12 2014

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING...

* TEMPERATURE...LOWS 29 TO 32.

* IMPACTS...THIS WILL BE THE FIRST FREEZE OF THE SEASON FOR MANY
  LOCATIONS. THESE TEMPERATURES MAY DAMAGE COLD SENSITIVE PLANTS.
  EXPOSED PIPES MAY FREEZE. OUTDOOR PETS MAY NEED EXTRA
  PROTECTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
321 PM CST TUE NOV 11 2014

.SHORT TERM (TONIGHT THROUGH WEDNESDAY NIGHT)...
A STRONG COLD FRONT WAS MOVING INTO DEEP SOUTH TEXAS AND THE TEXAS
COASTAL WATERS AT MID AFTERNOON. IN ITS WAKE...TEMPERATURES ACROSS
SOUTH CENTRAL TEXAS ARE MUCH COLDER THAN THIS TIME YESTERDAY. THE
CLOUDS HAVE ERODED SOUTH TO AN EAGLE PASS TO BOERNE TO AUSTIN TO
TAYLOR LINE. THIS HAS ALLOWED TEMPERATURES TO RECOVER INTO THE 50S
IN THE HILL COUNTRY. THE CLOUDS SHOULD ERODE A LITTLE FURTHER TO
THE SOUTH TONIGHT INTO WEDNESDAY AS EVEN DRIER AIR FILTERS INTO
OUR AREA. TEMPERATURE FORECASTS WILL BE SLIGHTLY LOWER CONFIDENCE
FOR MOST AREAS AS THE PERSISTENCE OF THE CLOUDS AND THE SUSTAINED
WINDS WILL PREVENT EFFICIENT RADIATIONAL COOLING AT NIGHT AND
SOLAR HEATING DURING THE DAY. HAVE ENOUGH CONFIDENCE THOUGH TO
KEEP THE HILL COUNTRY CLEAR WITH LIGHTER WINDS TONIGHT AS AXIS OF
SURFACE RIDGE BUILDS INTO THAT AREA. AS A RESULT..EXPECT FREEZING
TEMPERATURES ACROSS MUCH OF THE HILL COUNTRY...ESPECIALLY IN WIND
PROTECTED AREAS. HAVE ISSUED A FREEZE ADVISORY FROM 3 AM TONIGHT
UNTIL 9 AM WEDNESDAY FOR MUCH OF THE HILL COUNTRY. SOME ISENTROPIC
LIFT DEVELOPS LATE WEDNESDAY INTO WEDNESDAY NIGHT TO EXPAND THE
CLOUD DECK BACK NORTH. STILL EXPECT FREEZING TEMPERATURES ACROSS
THE HILL COUNTRY AND POSSIBLY SOME SPOTS ALONG THE ESCARPMENT
WEDNESDAY NIGHT. HOWEVER...THE CLOUD DECK MAY INHIBIT COOLING
ENOUGH TO KEEP TEMPERATURES A LITTLE WARMER. THE NAM SHOWS
STRONGER ISENTROPIC LIFT AND DEEPER MOIST LAYER TO GENERATE RAIN
WEDNESDAY NIGHT. THE NAM IS THE ONLY MODEL TO DO THIS AND WILL
DISREGARD IT AS MOISTURE ONLY DEEP ENOUGH FOR CLOUD FORMATION.

&&

.LONG TERM (THURSDAY THROUGH TUESDAY)...
THE ISENTROPIC LIFT WANES THURSDAY CAUSING THE CLOUDS TO ERODE TO
THE SOUTHEAST. THIS ALONG WITH MUCH LIGHTER WINDS WILL ALLOW FOR
MORE EFFICIENT RADIATIONAL COOLING THURSDAY NIGHT INTO FRIDAY
MORNING. EXPECT FREEZING TEMPERATURES TO BE MORE WIDESPREAD. A
FREEZE WARNING WILL LIKELY BE ISSUED FOR MANY AREAS ALONG AND
SOUTH OF THE ESCARPMENT. AN UPPER LEVEL TROUGH AND ANOTHER COLD
FRONT MOVE ACROSS TEXAS THIS WEEKEND WHILE A SURFACE TROUGH/LOW
DEVELOPS OVER THE COASTAL WATERS AND MOVES NORTHEAST. ISENTROPIC
LIFT STRENGTHENS FRIDAY NIGHT LEADING TO SLIGHT CHANCE TO CHANCE
OF RAIN OVERNIGHT INTO SATURDAY. A WARM ADVECTION PATTERN WILL
KEEP TEMPERATURES ABOVE FREEZING FRIDAY NIGHT INTO SATURDAY
NIGHT. THE TROUGH MOVES TO THE EAST AS THE COLD FRONT MOVES ACROSS
OUR AREA EARLY SUNDAY. RAIN CHANCES END WITH THE PASSAGE OF THESE
FEATURES. ANOTHER POTENTIAL FREEZE SETS UP FOR SUNDAY NIGHT INTO
MONDAY MORNING. THEN TEMPERATURES WARM BACK UP NEXT TUESDAY AHEAD
OF YET ANOTHER UPPER LEVEL TROUGH FOR THE MIDDLE OF NEXT WEEK.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              37  52  34  46  30 /   0   0  10  -   -
AUSTIN BERGSTROM INTL AIRPORT  36  52  32  47  28 /   0   0  10  -   -
NEW BRAUNFELS MUNI AIRPORT     38  53  36  48  29 /   0   0  10  -   -
BURNET MUNI AIRPORT            31  48  30  45  28 /   0   0  -   -   -
DEL RIO INTL AIRPORT           39  54  36  50  34 /   0   0  -   -   -
GEORGETOWN MUNI AIRPORT        33  49  31  46  29 /   0   0  -   -   -
HONDO MUNI AIRPORT             36  54  33  48  28 /   0   0  10  -   -
SAN MARCOS MUNI AIRPORT        37  52  34  47  29 /   0   0  10  -   -
LA GRANGE - FAYETTE REGIONAL   39  54  36  47  32 /  -   10  10  10  -
SAN ANTONIO INTL AIRPORT       38  54  36  48  32 /   0   0  10  -   -
STINSON MUNI AIRPORT           40  55  37  49  32 /  -    0  10  -   -

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
FREEZE WARNING FROM 3 AM TO 9 AM CST WEDNESDAY FOR THE FOLLOWING
COUNTIES: BLANCO...BURNET...EDWARDS...GILLESPIE...KENDALL...KERR...
LLANO...REAL.

&&

MESOSCALE/AVIATION...12
SYNOPTIC/GRIDS...04
PUBLIC SERVICE/DATA COLLECTION...32

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
439 AM CST TUE NOV 11 2014

TXZ171>173-183>194-202>209-217>225-228-121100-
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE-
MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-
FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
439 AM CST TUE NOV 11 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

FREEZING TEMPERATURES WILL BE POSSIBLE ACROSS THE NORTHERN HILL
COUNTRY ON THURSDAY MORNING AND ACROSS ALL OF THE HILL COUNTRY AND
INTERSTATE 35 CORRIDOR NORTH OF SAN ANTONIO ON FRIDAY MORNING.

NO OTHER HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.