FXUS64 KEWX 300537
AFDEWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1137 PM CST SUN NOV 29 2009
.AVIATION...COLD FRONT HAS NOW CLEARED SOUTH CENTRAL TEXAS HEADING
INTO THE COASTAL PLAINS. BEHIND THE FRONT WEAK DISTURBANCES ALOFT
AND MID AND UPPER MOISTURE FROM THE PACIFIC WERE OVERRUNNING THE
DRIER SURFACE AIRMASS..RESULTING IN SCATTERED MOSTLY LIGHT TO
MODERATE RAIN OR SHOWERS. I-35 CORRIDOR TERMINALS WILL HAVE MVFR
CIGS WITH OCNL LIGHT RAIN OR SHOWERS TONIGHT AND MONDAY. NORTH
WINDS 15 TO 25 MPH BECOMING NORTH TO NORTHEAST 5 TO 10 KTS LATE
MONDAY AFTERNOON. KDRT TERMINAL MVFR CIGS WITH OCNL LIGHT TO
MODERATE RAIN OR SHOWERS WITH VSBYS LOWERING TO MVFR BY MONDAY
AFTERNOON IN MORE NUMEROUS AREAS OF RAIN OR SHOWERS. NORTHWEST
WINDS 10 TO 15 KTS TONIGHT AND EARLY MONDAY BECOMING LIGHT
NORTHWEST MONDAY AFTERNOON.
&&
.PREV DISCUSSION... /ISSUED 844 PM CST SUN NOV 29 2009/
DISCUSSION...
AT 02Z THE COLD FRONT EXTENDED FROM CALDWELL TO SEGUIN TO SAN
ANTONIO TO NORMANDY...MOVING SOUTH AT 20 MPH. CONVECTION IS
ONGOING IN THE WARM SECTOR...EAST OF I-35 AND NORTH OF I-10.
POST-FRONTAL RAINS AND SHOWERS WILL CONTINUE OVERNIGHT AS MINOR
PERTURBATIONS IN THE SOUTHERN BRANCH OF THE JET TRANSLATE ACROSS
TEXAS. ONLY MINOR CHANGES TO THE GRIDS. WINTERY MIX STILL POSSIBLE
TUESDAY NIGHT INTO WEDNESDAY MORNING ACROSS THE HILL COUNTRY
AND EDWARDS PLATEAU AS THE CORE OF THE UPPER LEVEL LOW PRESSURE
SYSTEM MOVES EASTWARD ACROSS OUR CWFA.
PREV DISCUSSION... /ISSUED 608 PM CST SUN NOV 29 2009/
AVIATION...
WEAK DISTURBANCES ALOFT AHEAD OF A MAJOR STORM SYSTEM TO THE WEST
OF THE REGION PRODUCING SCATTERED SHOWERS AND A FEW ISOLATED
THUNDERSTORMS IN THE WARM SECTOR EARLY THIS EVENING. AT 00Z A COLD
FRONT WAS LOCATED NEAR A FLORENCE..ST0NEWALL..TO JUST NORTH OF DEL
RIO LINE. BEHIND THE FRONT A FEW ELEVATED SHOWERS WERE IN EVIDENCE
MOVING NORTHEAST ACROSS WEST CENTRAL TEXAS. THE FRONT SHOULD
CONTINUE MOVING THROUGH SOUTH CENTRAL TEXAS THIS EVENING..REACHING
THE COASTAL PLAINS BY MIDNIGHT. I-35 TERMINAL SITES..CIGS MOSTLY
MVFR VSBYS GENERALLY 6SM IN LIGHT RAIN AND SHOWERS. COLD FRONT
WILL PUSH THROUGH I-35 CORRIDOR TAF SITES BETWEEN 02-03Z WITH POST
FRONTAL NORTHERLY WINDS OF 15 TO 25 KTS. POST FRONTAL CIGS
REMAINING IN THE MVFR CATEGORY WITH INTERMITTENT LIGHT RAIN OR
SHOWERS BEHIND THE FRONT. KDRT TERMINAL WILL SEE VFR CIGS THIS
EVENING WITH CIGS GRADUALLY LOWERING TO MVFR BY MIDNIGHT.
SCATTERED TO NUMEROUS LIGHT RAIN OR SHOWERS WILL INCREASE
OVERNIGHT WITH MVFR VSBYS/CIGS IN RAIN AND FOG THROUGHOUT MUCH OF
THE DAY MONDAY. NORTH WINDS OF 10 T0 20 KTS TONIGHT AND MONDAY
MORNING LOWERING TO 5 TO 10 KTS MONDAY AFTERNOON.
PREV DISCUSSION... /ISSUED 347 PM CST SUN NOV 29 2009/
DISCUSSION...
THE MUCH-ADVERTISED COLD FRONT IS CURRENTLY ENTERING THE HILL
COUNTRY AND IS EXPECTED TO PUSH ACROSS SOUTH CENTRAL TEXAS THIS
EVENING AND REACH THE COAST BY MIDNIGHT. SPRINKLES AND LIGHT RAIN
SHOWERS WILL CONTINUE AHEAD OF THE FRONT WITH CHANCES FOR RAIN
INCREASING THIS EVENING AND OVERNIGHT. BLUSTERY WINDS WILL
ACCOMPANY THE FRONT OVERNIGHT. TEMPERATURES WILL DROP TO THE 40S
ACROSS THE HILL COUNTRY AND LOWER 50S ELSEWHERE ACROSS THE REGION.
WET...COLD...AND BREEZY CONDITIONS ARE EXPECTED TO PERSIST ON
MONDAY. TEMPERATURES WILL STRUGGLE TO WARM UP AND WILL GENERALLY
REMAIN IN THE LOWER 50S.
INTERMITTENT RAIN IS EXPECTED TONIGHT THROUGH WEDNESDAY MORNING AS
AN UPPER LOW SWINGS ACROSS NORTHERN MEXICO TOWARD TEXAS. RAINFALL
TOTALS FROM TONIGHT THROUGH WEDNESDAY MAY REACH TO 1 TO 3 INCHES.
COLD AIR ADVECTION WILL CONTINUE ON TUESDAY WITH MORNING LOWS IN
THE LOWER 40S TO UPPER 30S ACROSS THE HILL COUNTRY. THE NAM DOES
NOT SUPPORT FROZEN PRECIP ACROSS OUR AREA THROUGH THE FORECAST
PERIOD. THE GFS JUST BARELY SKIRTS THE NORTHERN BORDER OF THE CWA
WITH A SLIGHT CHANCE FOR LIGHT SNOW. SINCE CHANCES FOR RAIN WILL
CONTINUE TO BE HIGH...CANNOT RULE OUT THE CHANCE FOR A MIX OF RAIN
AND LIGHT SNOW ACROSS THE EDWARDS PLATEAU AND HIGHER ELEVATIONS
EARLY TUESDAY MORNING. HOWEVER...NO ACCUMULATIONS ARE EXPECTED
ACROSS OUR AREA DUE TO WARM GROUNDS. ANOTHER COLD AND WET DAY IS
EXPECTED ON TUESDAY WITH THE ONLY CONSOLATION BEING LIGHTER WINDS.
COLDER TEMPERATURES WILL SETTLE IN TUESDAY NIGHT AND WEDNESDAY
MORNING. HOWEVER...DRYING FROM THE WEST IS ALSO ANTICIPATED AS
THE UPPER LOW SHIFTS TO THE LOWER MISSISSIPPI VALLEY. THERE IS A
BRIEF WINDOW FOR LIGHT SNOW MAINLY ACROSS THE EASTERN HILL COUNTRY
WHERE TEMPERATURES WILL BE COOL ENOUGH BEFORE CHANCES FOR RAIN
EXIT THE PICTURE. ONCE AGAIN ONLY LITTLE OR NO ACCUMULATIONS ARE
EXPECTED.
THE FORECAST BECOMES MUCH LESS OF A CHALLENGE AFTER WEDNESDAY
MORNING. HIGH PRESSURE BEGINS TO BUILD AT THE SURFACE. THIS WILL
LEAD TO SKIES FINALLY CLEARING OUT WEDNESDAY AFTERNOON. SLIGHTLY
WARMER AFTERNOONS AND COOLER MORNINGS ARE ANTICIPATED THROUGH FRIDAY.
AN UPPER LEVEL SHORTWAVE TROUGH IS EXPECTED TO PUSH ACROSS THE
REGION ON FRIDAY. SLIGHT CHANCES FOR RAIN WILL ACCOMPANY THIS
SYSTEM MAINLY ACROSS THE COASTAL PLAINS.
&&
.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY 47 54 42 49 37 / 80 40 50 80 50
AUSTIN BERGSTROM INTL AIRPORT 50 51 42 49 39 / 80 40 50 80 50
NEW BRAUNFELS MUNI AIRPORT 50 52 42 50 37 / 80 60 60 90 50
BURNET MUNI AIRPORT 44 52 40 44 38 / 70 30 50 80 50
DEL RIO INTL AIRPORT 47 49 41 51 37 / 50 80 60 70 10
GEORGETOWN MUNI AIRPORT 46 53 41 47 37 / 80 30 40 80 50
HONDO MUNI AIRPORT 51 54 43 50 38 / 70 80 60 90 20
SAN MARCOS MUNI AIRPORT 49 51 42 50 38 / 80 50 60 90 50
LA GRANGE - FAYETTE REGIONAL 52 54 44 49 41 / 80 60 60 80 60
SAN ANTONIO INTL AIRPORT 50 54 42 49 40 / 80 70 60 90 40
STINSON MUNI AIRPORT 52 54 43 50 40 / 80 80 60 90 40
&&
.EWX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&
$$
13/02
