Wind Advisory 19, NWS Austin/San Antonio, TX

000 
WWUS74 KEWX 150925
NPWEWX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
325 AM CST SAT NOV 15 2008

...A FREEZE WARNING IS IN EFFECT FROM 9 PM THIS EVENING UNTIL 9 AM
SUNDAY MORNING FOR THE HILL COUNTRY AND MUCH OF SOUTH CENTRAL
TEXAS...

.A STRONG COLD FRONT OVERNIGHT HAS USHERED IN COLD...VERY DRY AIR.
THIS WILL RESULT IN A HARD FREEZE TONIGHT OVER THE HILL COUNTRY
AND A FREEZE OVER MUCH OF SOUTH CENTRAL TEXAS. THE FREEZE WARNING
IS GENERALLY ALONG AND NORTH OF INTERSTATE 10 EAST OF SAN ANTONIO...
AND HIGHWAY 90 WEST OF SAN ANTONIO.

TXZ173-191>194-204>208-152130-
/O.EXP.KEWX.WI.Y.0019.000000T0000Z-081115T0900Z/
/O.NEW.KEWX.FZ.W.0002.081116T0300Z-081116T1500Z/
WILLIAMSON-HAYS-TRAVIS-BASTROP-LEE-MEDINA-BEXAR-COMAL-GUADALUPE-
CALDWELL-
INCLUDING THE CITIES OF...GEORGETOWN...SAN MARCOS...AUSTIN...
BASTROP...GIDDINGS...HONDO...SAN ANTONIO...NEW BRAUNFELS...
SEGUIN...LOCKHART
325 AM CST SAT NOV 15 2008

...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST
SUNDAY...
...WIND ADVISORY HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
FREEZE WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO
9 AM CST SUNDAY. THE WIND ADVISORY IS NO LONGER IN EFFECT. 

A STRONG COLD FRONT OVERNIGHT HAS USHERED IN COLD DRY AIR THAT
WILL RESULT IN A FREEZE TONIGHT OVER MUCH OF SOUTH CENTRAL TEXAS.
THE FREEZE WARNING IS GENERALLY ALONG AND NORTH OF INTERSTATE 10
EAST OF SAN ANTONIO AND HIGHWAY 90 WEST OF SAN ANTONIO. WITH CLEAR
SKIES AND WINDS BECOMING LIGHT...TEMPERATURES WILL PLUMMET THIS
EVENING AND DIP TO AT OR BELOW FREEZING BY SUNRISE SUNDAY.
PRECAUTIONS SHOULD BE TAKE TO PROTECT EXPOSED PIPES...PETS AND
PLANTS TODAY.

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

$$

TXZ220-221-151030-
/O.EXP.KEWX.WI.Y.0019.000000T0000Z-081115T0900Z/
ATASCOSA-WILSON-
INCLUDING THE CITIES OF...PLEASANTON...FLORESVILLE
325 AM CST SAT NOV 15 2008

...WIND ADVISORY HAS EXPIRED...

WINDS HAVE DECREASED TO 15 TO 25 MPH OR LESS MOST AREAS AND THE
WIND ADVISORY HAS BEEN ALLOWED TO EXPIRE.

$$

TXZ171-172-183>190-202-203-209-152130-
/O.NEW.KEWX.FZ.W.0002.081116T0300Z-081116T1500Z/
LLANO-BURNET-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-GILLESPIE-
KENDALL-BLANCO-KINNEY-UVALDE-FAYETTE-
INCLUDING THE CITIES OF...LLANO...BURNET...DEL RIO...
ROCKSPRINGS...LEAKEY...KERRVILLE...BANDERA...FREDERICKSBURG...
BOERNE...BLANCO...BRACKETTVILLE...UVALDE...LA GRANGE
325 AM CST SAT NOV 15 2008

...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
FREEZE WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO
9 AM CST SUNDAY. 

A STRONG COLD FRONT OVERNIGHT HAS USHERED IN COLD DRY AIR THAT WILL
RESULT IN A HARD FREEZE TONIGHT OVER MUCH OF THE TEXAS HILL COUNTRY.
THE FREEZE WARNING IS GENERALLY ALONG AND NORTH OF INTERSTATE 10
EAST OF SAN ANTONIO AND HIGHWAY 90 WEST OF SAN ANTONIO. WITH CLEAR
SKIES AND WINDS BECOMING LIGHT...TEMPERATURES WILL PLUMMET THIS
EVENING AND DIP TO BELOW FREEZING BY MIDNIGHT TONIGHT. LOW TEMPERATURES
BY SUNRISE SUNDAY ARE EXPECTED TO BE IN THE MID AND UPPER 20S...WITH
EVEN LOWER 20S POSSIBLE IN SOME LOW LYING AREAS. PRECAUTIONS SHOULD
BE TAKE TO PROTECT EXPOSED PIPES...PETS AND PLANTS TODAY.

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

$$

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
709 PM CST FRI NOV 14 2008

.UPDATE...
UPDATED FORECAST TO INCREASE 1ST PERIOD WINDS SLIGHTLY...TO AT OR
SLIGHTLY BELOW THE LOW-END OF OUR WIND ADVISORY CRITERIA. ALSO
ADDED A MENTION OF SHOWERS TO OUR SE COUNTIES PRIOR TO MIDNIGHT.
OTHERWISE...FORECAST ON TRACK.

NEW SUITE OF PRODUCTS OUT SOON.

&&

.PREV DISCUSSION... /ISSUED 552 PM CST FRI NOV 14 2008/

AVIATION...
THE STRONG COLD FRONT HAS ENTERED SOUTH CENTRAL TEXAS AND HAS
SHIFTED WINDS AT ALL TAF SITES TO THE NW-NORTH. WINDS OF 10 TO 15
KTS WILL INCREASE TO 15 TO 20 KTS WITH GUSTS TO NEAR 30 KTS BY
01-02Z. THE STRONG AND GUSTY WINDS WILL PERSIST THROUGH THE
OVERNIGHT HOURS AND THROUGH MUCH OF SATURDAY AFTERNOON. GUSTS ARE
EXPECTED TO DIMINISH DURING THE LATE AFTERNOON BUT SUSTAINED WINDS
WILL REMAIN 10-15 KTS THROUGH THE REST OF THE TAF PERIOD. VFR
CONDITIONS WILL PREVAIL THROUGH AT LEAST THE NEXT 24 HOURS.

PREV DISCUSSION... /ISSUED 355 PM CST FRI NOV 14 2008/

DISCUSSION...
A STRONG COLD FRONT CURRENTLY MOVING INTO THE HILL COUNTRY WILL
SURGE ACROSS THE REMAINDER OF SOUTH CENTRAL TEXAS BY LATE THIS
EVENING. MOISTURE IS LIMITED WITH ONLY 10 POPS FOR FAR EASTERN
AREAS FOR AN ISOLATED SHOWER DUE PWS AROUND 1.1 INCH. BREEZY TO
LOCALLY WINDY CONDITIONS CAN BE EXPECTED AS HIGH PRESSURE BUILDS
INTO THE AREA. ISOLATED WIND GUSTS UP TO 40 MPH ARE POSSIBLE,
HOWEVER SUSTAINED WINDS WILL REMAIN BELOW WIND ADVISORY LEVELS,
EXCEPT LOCALLY HIGHER IN NORTH TO NORTHWEST ORIENTED CANYONS.
LATER SHIFTS WILL MONITOR SHOULD STRONGER WINDS BECOME MORE
WIDESPREAD FOR WIND ADVISORY. WIND SPEEDS DECREASE SLIGHTLY LATER
TONIGHT, THEN INCREASE SATURDAY MORNING DUE SUBSIDENCE AND MIXING
WITH STRONGER WINDS ALOFT. SURFACE HIGH SETTLES INTO AREA SATURDAY
NIGHT WITH STRONGER WINDS ALOFT DECOUPLING RAPIDLY AROUND SUNSET
AND MOVING OFF TO THE EAST IN THE EVENING. LIGHT WINDS, VERY LOW
DEWPOINTS, CLEAR SKIES, AND DRY GROUND SET THE STAGE FOR THE FIRST
WIDESPREAD FREEZE OF THE SEASON. AREAS NORTH OF A LA GRANGE TO SAN
ANTONIO TO DEL RIO ARE MOST SUSCEPTIBLE WITH A HARD FREEZE IN THE
HILL COUNTRY. A FREEZE WARNING WILL LIKELY HAVE TO BE ISSUED BY
LATER SHIFTS. THE EASTERN STATES UPPER TROUGH AND WESTERN STATES
UPPER RIDGE THIS WEEKEND INTO EARLY NEXT WEEK IS SLOWLY REPLACED
BY A ZONAL FLOW ALOFT BY MID TO LATE NEXT WEEK. REINFORCING SURGE
OF HIGH PRESSURE CAN BE EXPECTED LATE MONDAY BEFORE THE HIGH MOVES
OFF TO THE EAST WITH LOW PRESSURE IN THE PLAINS. MOISTURE WILL BE
SLOW TO RETURN AS GULF OF MEXICO MOISTURE REMAINS CUT OFF UNTIL
MID WEEK. NO POPS ARE SHOWN AS PWS ARE NEAR 0.25 INCH THIS WEEKEND
INTO EARLY NEXT WEEK, THEN ONLY RISE TO NEAR 0.75 INCHES LATE NEXT
WEEK. THE COLD FRONT FOR LATE WEEK IS NO LONGER INDICATED ON ANY
MODEL AND THIS SEEMS REASONABLE DUE ZONAL FLOW ALOFT. TEMPERATURES
WILL SLOWLY RETURN TO NEAR MID INTO LATE NOVEMBER AVERAGES. HAVE
GONE A CATEGORY OR TWO COLDER THAN MAV/MEX LOWS TONIGHT THROUGH
SUNDAY NIGHT DUE LOWER DEWPOINTS THAN GUIDANCE. OTHERWISE, HAVE
GONE NEAR THE MAV/MEX TEMPERATURES THROUGH THE FORECAST PERIOD.

FIRE WEATHER... THE FIRE WEATHER WATCH HAS BEEN UPGRADED TO A RED
FLAG WARNING. IT IS ALSO STARTS EARLIER. IT IS IN EFFECT THIS
EVENING THROUGH SATURDAY AFTERNOON. CRITICAL FIRE WEATHER
CONDITIONS COULD DEVELOP FOR A FEW HOURS LATE THIS AFTERNOON INTO
EARLY THIS EVENING WHILE TEMPERATURES ARE STILL WARM ENOUGH TO
SUPPORT RELATIVE HUMIDITY VALUES IN THE TEENS. 20-FOOT LEVEL WINDS
WILL AVERAGE 15 TO 25 MPH THIS EVENING AND AGAIN DURING THE
DAYTIME HOURS SATURDAY. BY SATURDAY MORNING THE AIR SHOULD BE DRY
ENOUGH TO SUPPORT MINIMUM RELATIVE HUMIDITY VALUES IN THE LOWER
AND MIDDLE TEENS OVER NEARLY ALL OF SOUTH CENTRAL TEXAS. FAYETTE
AND LAVACA COUNTIES HAVE BEEN DROPPED FROM THE WATCH/WARNING DUE
TO RECENT RAINFALL.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              47  68  35  72  42 /   0   0   0   0   0
AUSTIN BERGSTROM INTL AIRPORT  46  65  29  69  34 /   0   0   0   0   0
DEL RIO INTL AIRPORT           44  70  35  70  40 /   0   0   0   0   0
SAN ANTONIO INTL AIRPORT       46  69  33  74  39 /   0   0   0   0   0

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
RED FLAG WARNING UNTIL 4 PM CST SATURDAY FOR THE FOLLOWING
COUNTIES: ATASCOSA...BANDERA...BASTROP...BEXAR...BLANCO...BURNET...
CALDWELL...COMAL...DE WITT...DIMMIT...EDWARDS...FRIO...GILLESPIE...
GONZALES...GUADALUPE...HAYS...KARNES...KENDALL...KERR...KINNEY...
LEE...LLANO...MAVERICK...MEDINA...REAL...TRAVIS...UVALDE...VAL
VERDE...WILLIAMSON...WILSON...ZAVALA.

&&

11/25/PM

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
358 PM CST FRI NOV 14 2008

TXZ171>173-183>194-202>209-217>225-228-152200-
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-
358 PM CST FRI NOV 14 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...
A RED FLAG WARNING HAS BEEN ISSUED FOR STRONG NORTH WINDS AND VERY
DRY CONDITIONS ACROSS NEARLY ALL OF SOUTH CENTRAL TEXAS. CRITICAL
FIRE WEATHER CONDITIONS ARE EXPECTED TO DEVELOP AS EARLY AS 5 PM
AND REMAIN POSSIBLE THROUGH LATE TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...
A RED FLAG WARNING CONTINUES IN EFFECT THROUGH SATURDAY AFTERNOON.

A FREEZE WARNING MAY BE NEEDED FOR EARLY SUNDAY MORNING. FREEZING
TEMPERATURES WILL BE POSSIBLE OVER THE NORTHERN HALF OF SOUTH
CENTRAL TEXAS OR GENERALLY NORTH OF U.S. HIGHWAY 90.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED.