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Austin, TX Local Weather thread
10-05-2009, 01:30 PM
Post: #24
Austin, TX Local Weather thread
Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX

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000
FXUS64 KEWX 051807
AFDEWX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
107 PM CDT MON OCT 5 2009

.AVIATION...
A COOL STATIONARY FRONTAL BOUNDARY EXTENDED FROM ROCKSPRINGS TO
NEAR HONDO AND EAST TO COLUMBUS. LOW CLOUDS AND PATCHY FOG WERE
LIFTING SLOWLY BEHIND THE FRONT WITH WARMER AIR AND SOUTHEAST
WINDS THINNING CLOUDS OUT AHEAD OF THE FRONT. I-35 CORRIDOR..
IFR CIGS WILL LIFT AND BECOME VFR CLOUDS BY LATE AFTERNOON WITH
SCT SHOWERS AND THUNDERSTORMS POSSIBLE TIL SUNSET. IFR CIGS WILL
FORM AGAIN BY MIDNIGHT WITH PATCHY FOG VCNTY KAUS LOWERING VSBYS
AOB 3 MILES BECOMING AFTER 15Z CIGS AND VSBYS IMPROVING RAPIDLY
TO VFR CONDITIONS. EAST TO SOUTHEAST WINDS 5 TO 10 KTS THIS
AFTERNOON BECOMING SOUTHEAST 5 TO 10 KTS TONIGHT AND TUESDAY. KDRT
TERMINAL..VFR CONDITIONS EXPECTED WITH WIDELY SCATTERED AFTERNOON
AND EARLY EVENING SHOWERS AND THUNDERSTORMS. MVFR CIGS FORMING
AFTER 10Z. SOUTHEAST WINDS AROUND 10 KTS.

&&

.PREV DISCUSSION... /ISSUED 1130 AM CDT MON OCT 5 2009/

UPDATE...
LATE THIS MORNING THE FRONT HAS BECOME STATIONARY FROM SPEAKS TO
PLEASANTON TO ROCKSPRINGS. A SHALLOW AND COOL AIRMASS WAS LOCATED
NORTH OF THE FRONT BUT THIS AIRMASS WILL SLOWLY ERODE/MODIFY AS
THE AFTERNOON PROGRESSES AS THE STATIONARY FRONT BEGINS TO RETURN
NORTHWARD AS A WARM FRONT. THIS BOUNDARY WILL SERVE AS THE BEST
AREA FOR CONVECTIVE DEVELOPMENT DUE TO WEAK LOW LEVEL CONVERGENCE.
PWS AROUND 2 INCHES...A WEAK VORT MAX WEST OF BIG BEND MOVING
EASTWARD AND DIFFERENTIAL HEATING ALONG THE SFC BOUNDARY WILL
ALSO AID IN THE DEVELOPMENT OF CONVECTION THIS AFTERNOON. HAVE
LOWERED AFTERNOON HIGHS 1 TO 3 DEGREES NORTH OF THE FRONTAL
BOUNDARY OTHERWISE REMAINDER OF FCST UNCHANGED.

PREV DISCUSSION... /ISSUED 900 AM CDT MON OCT 5 2009/

UPDATE...
SHALLOW COLD FRONT CONTINUES TO SINK SOUTHWARD ACROSS OUR NORTHEAST
COUNTIES. ATTM THE FRONT WAS LOCATED FROM JUNCTION TO SAN ANTONIO
TO COLUMBUS. LOW CEILINGS...PATCHY DENSE FOG AND LIGHT DRIZZLE WERE
OCCURRING NORTH OF THIS FRONTAL BOUNDARY. GRIDS AND TEXT PRODUCTS
UPDATED.

PREV DISCUSSION... /ISSUED 642 AM CDT MON OCT 5 2009/

AVIATION...
A WEAK COLD FRONT WAS PUSHING ACROSS S CENTRAL TX THIS MORNING AND
WILL BECOME STATIONARY NEAR A KDRT TO 50S KSAT TO 25N KVCT LINE BY
1Y7Z. WIDESPREAD IFR CIGS AND MVFR VSBYS THIS MORNING WILL
GRADUALLY LIFT TO MVFR BY LATE MORNING AND VFR BY AFTERNOON OR
18Z. ISOLD SHRA AND PATCHY -DZ WILL CONTINUE THIS MORNING AND MOVE
NWD THIS MORNING...BECOMING ISOLD-SCT SHRSA/TSRA BY THE
AFTERNOON...MOST NUMEROUS EAST OF I35. OTHERWISE VFR THIS AFTERNOON
AND EVENING...BUT QUICKLY BECOMING MVFR THEN IFR AFTER 04Z THIS
EVENING AS GULF MOISTURE SURGES NWD. LIFR CONDITIONS POSSIBLE BY
SUNRISE TUESDAY CONTINUING TIL ABOUT 06Z/15Z...BUT NOT ENOUGH
CONFIDENCE TO INCLUDE IN THE TAFS AT THIS TIME.

PREV DISCUSSION... /ISSUED 430 AM CDT MON OCT 5 2009/

DISCUSSION...
PATCHES OF LIGHT RAIN SHOWERS WILL CONTINUE TO DEVELOP AND STREAM
NORTH ACROSS THE COASTAL PLAINS THROUGH THIS MORNING. SOME OF
THESE SHOWERS WILL REACH THE I-35 CORRIDOR. RAINFALL AMOUNTS WILL
GENERALLY BE SKIMPY...BUT SHOULD BE ENOUGH TO WET THE PAVEMENT
MAKING FOR A SLIPPERY MORNING COMMUTE. WARM AND HUMID CONDITIONS
ARE EXPECTED TODAY AS SOUTHERLY WINDS PUSH WARM AND MOIST GULF AIR
INTO THE REGION.

RAIN CHANCES WILL CONTINUE THROUGH NEARLY ALL OF THE FORECAST
PERIOD AS SOUTHERLY SFC FLOW CONTINUES AND COUPLES WITH A SERIES
OF WEAK UPPER LEVEL DISTURBANCES MOVE ACROSS THE REGION. A WEAK
COLD FRONT WILL APPROACH THE REGION ON TUESDAY BRINGING AN
INCREASED CHANCE OF RAIN TO THE CWA. THIS SYSTEM IS EXPECTED TO
STALL ACROSS THE HILL COUNTRY BEFORE EJECTING TO THE NORTHEAST
LATE WEDNESDAY. RAIN CHANCES WILL DECREASE TO NEAR CLIMO NORMS
(20-30 PERCENT) ON THURSDAY BEFORE INCREASING AGAIN ON FRIDAY
AHEAD OF ANOTHER FRONT. THIS SECOND COLD FRONT IS EXPECTED TO PUSH
TO THE COAST BY FRIDAY NIGHT AND WILL BRING THE BEST AREA-WIDE
CHANCES FOR RAIN IN THE FORECAST PERIOD. DRIER CONDITIONS ARE
EXPECTED IN THE WAKE OF THE FROPA FOR THE WEEKEND.

TEMPERATURES WILL UNDERGO A WARMING TREND AHEAD OF THE LATE-WEEK
COLD FRONT. THE EXCEPTION IS WEDNESDAY AS WEAK COLD AIR ADVECTION
AND RAIN CHANCES WILL MODERATE AFTERNOON HIGHS BY A FEW DEGREES.
OTHERWISE EXPECT HIGH TEMPS IN THE MID 80S TO LOWER 90S AND LOWS
IN THE LOWER TO MID 70S. TEMPERATURES ON FRIDAY ARE HIGHLY
DEPENDENT UPON THE TIMING OF THE FRONT...THUS CONFIDENCE IS LOW.
NOTICEABLY COOLER MORNING TEMPS ARE EXPECTED FOR THE WEEKEND BUT
WILL WARM TO CHAMBER- OF-COMMERCE READINGS IN THE MID 70S TO NEAR
80.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY 76 92 72 86 75 / 20 40 40 40 20
AUSTIN BERGSTROM INTL AIRPORT 75 91 70 87 73 / 20 40 40 40 20
NEW BRAUNFELS MUNI AIRPORT 75 92 73 86 73 / 20 30 30 30 20
BURNET MUNI AIRPORT 75 86 68 83 72 / 20 50 50 40 20
DEL RIO INTL AIRPORT 78 95 76 91 75 / 20 20 20 20 10
GEORGETOWN MUNI AIRPORT 75 89 70 83 75 / 20 50 50 40 20
HONDO MUNI AIRPORT 76 93 75 90 75 / 20 30 30 20 20
SAN MARCOS MUNI AIRPORT 76 91 73 86 75 / 20 30 30 40 20
LA GRANGE - FAYETTE REGIONAL 76 91 75 89 76 / 20 30 30 40 20
SAN ANTONIO INTL AIRPORT 77 90 75 89 76 / 20 30 30 30 20
STINSON MUNI AIRPORT 77 92 75 90 76 / 20 30 30 30 20

&&

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

$$

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Messages In This Thread
Austin, TX Local Weather thread - Shoshana - 07-26-2009, 12:40 AM
Austin, TX Local Weather thread - Shoshana - 08-01-2009, 01:02 AM
Austin, TX Local Weather thread - SpecialK - 08-02-2009, 07:02 PM
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Austin, TX Local Weather thread - ROLLTIDE - 09-20-2009, 04:31 PM
Austin, TX Local Weather thread - ROLLTIDE - 09-21-2009, 01:07 PM
Austin, TX Local Weather thread - ROLLTIDE - 09-22-2009, 10:34 AM
Austin, TX Local Weather thread - ROLLTIDE - 09-23-2009, 02:26 PM
Austin, TX Local Weather thread - ROLLTIDE - 09-27-2009, 09:36 PM
Austin, TX Local Weather thread - ROLLTIDE - 09-28-2009, 11:37 AM
Austin, TX Local Weather thread - ROLLTIDE - 09-29-2009, 11:53 AM
Austin, TX Local Weather thread - ROLLTIDE - 09-30-2009, 12:08 PM
Austin, TX Local Weather thread - ROLLTIDE - 10-01-2009, 10:46 AM
Austin, TX Local Weather thread - ROLLTIDE - 10-02-2009, 01:01 PM
Austin, TX Local Weather thread - ROLLTIDE - 10-04-2009, 08:31 AM
Austin, TX Local Weather thread - ROLLTIDE - 10-05-2009 01:30 PM
Austin, TX Local Weather thread - ROLLTIDE - 10-06-2009, 10:53 AM
Austin, TX Local Weather thread - ROLLTIDE - 10-07-2009, 12:39 PM
Austin, TX Local Weather thread - ROLLTIDE - 10-08-2009, 03:17 PM
Austin, TX Local Weather thread - ROLLTIDE - 10-21-2009, 03:01 PM
Austin, TX Local Weather thread - ROLLTIDE - 10-24-2009, 02:08 PM
Austin, TX Local Weather thread - ROLLTIDE - 10-25-2009, 03:22 PM
Austin, TX Local Weather thread - ROLLTIDE - 10-27-2009, 12:25 PM
Austin, TX Local Weather thread - ROLLTIDE - 10-31-2009, 02:11 PM
Austin, TX Local Weather thread - ROLLTIDE - 11-16-2009, 04:08 PM
Austin, TX Local Weather thread - ROLLTIDE - 11-18-2009, 09:10 AM
Austin, TX Local Weather thread - ROLLTIDE - 11-20-2009, 09:21 AM
Austin, TX Local Weather thread - ROLLTIDE - 11-21-2009, 10:34 PM
Austin, TX Local Weather thread - ROLLTIDE - 11-22-2009, 07:57 AM
Austin, TX Local Weather thread - ROLLTIDE - 11-24-2009, 06:29 AM
Austin, TX Local Weather thread - ROLLTIDE - 12-01-2009, 05:02 AM
Austin, TX Local Weather thread - ROLLTIDE - 12-01-2009, 02:55 PM
Austin, TX Local Weather thread - ROLLTIDE - 12-02-2009, 07:12 AM
Austin, TX Local Weather thread - ROLLTIDE - 12-03-2009, 08:29 AM
Austin, TX Local Weather thread - ROLLTIDE - 12-09-2009, 10:22 PM
Austin, TX Local Weather thread - ROLLTIDE - 12-16-2009, 12:10 AM

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