FXUS64 KEWX 290327 AAA
AFDEWX
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
927 PM CST SAT NOV 28 2009
.UPDATE...
THIS EVENING MID AND HIGH LEVEL CLOUDINESS WAS INVADING FROM THE
WEST AS THE UPPER LEVEL LOW PRESSURE SYSTEM CONTINUES TO DIG
SOUTHWARD ACROSS SOUTHERN CALIFORNIA. WAA IS ALSO ONGOING ACROSS
OUR CWFA WITH VAD WIND PROFILES DEPICTING SOUTH TO SOUTHEAST
WINDS UP TO 5K FT. DEWPOINTS ARE ON THE RISE...THUS TEMPERATURES
OVERNIGHT WILL BE STEADY OR SLOWING RISING. GRIDS AND TEXT FCSTS
UPDATED.
&&
.PREV DISCUSSION... /ISSUED 608 PM CST SAT NOV 28 2009/
AVIATION...WITH THE APPROACH OF THE STORM SYSTEM TO THE WEST
TONIGHT...SOUTHERLY FLOW AND GULF MOISTURE ADVECTION WILL CONTINUE
WITH GRADUALLY LOWERING CIGS. VSBYS WILL LOWER AS WELL OVERNIGHT
AND INTO EARLY SUNDAY. I-35 CORRIDOR TERMINAL SITES WILL SEE VFR
CIGS THIS EVENING WITH MVFR CIGS FORMING AROUND MIDNIGHT. CIGS
GRADUALLY LOWERING OVERNIGHT TO LIFR CONDITIONS AROUND DAWN. MVFR
VSBYS WILL FORM IN FOG DURING THE EARLY MORNING HOURS AND LOWER TO
BECOME PATCHY IFR/LIFR VSBYS IN FOG AROUND DAWN. CIGS AND VSBYS
WILL IMPROVE TO MVFR DURING THE LATE MORNING HOURS.. BECOMING VFR
DURING THE AFTERNOON WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS POSSIBLE. SOUTH TO SOUTHEAST WINDS GENERALLY RANGING
FROM 5 TO 10 KTS. KDRT TERMINAL VFR CLOUDS AOA 10 THSD AGL THIS
EVENING WITH IFR CIGS/MVFR VSBYS IN FOG DEVELOPING OVERNIGHT
IMPROVING TO MVFR CIGS BY LATE MORNING. SOUTHEAST WINDS 5 TO 10 KTS.
PREV DISCUSSION... /ISSUED 314 PM CST SAT NOV 28 2009/
DISCUSSION...
THE WARMING AND MOISTENING TREND WILL CONTINUE OVERNIGHT AND
TOMORROW AHEAD OF AN APPROACHING COLD FRONT. FOG IS EXPECTED TO
DEVELOP BY MIDNIGHT MAINLY ALONG AND SOUTHEAST OF THE I-35
CORRIDOR BUT WILL GRADUALLY SPREAD NORTH AND WEST THROUGH THE WEE
HOURS OF THE MORNING. THE FOG WILL GRADUALLY DISSIPATE BY MID-
MORNING. OVERNIGHT LOWS WILL BE MILD AND GENERALLY STAY IN THE
LOWER 60S AND UPPER 50S WITH SLIGHTLY COOLER TEMPS ACROSS THE HILL
COUNTRY. AFTERNOON TEMPERATURES WILL WARM TO A FEW DEGREES COOLER
THAN WE HAD TODAY.
THE COLD FRONT IS EXPECTED TO REACH THE HILL COUNTRY DURING THE
AFTERNOON AND SHOULD REACH THE COAST BY EARLY MONDAY MORNING.
CHANCES FOR RAIN WILL INCREASE AHEAD OF THE FRONT WITH A COLD RAIN
EXPECTED BEHIND THE FROPA. MONDAY LOOKS TO BE BREEZY...WET...AND
CHILLY. INTERMITTENT RAIN IS EXPECTED THROUGHOUT THE DAY WITH
TEMPERATURES ONLY REACHING NEAR 50 AT BEST. SIMILAR CONDITIONS ARE
EXPECTED TUESDAY BUT WINDS WILL BE LESS BLUSTERY. CHANCES FOR
PRECIP REMAIN IN THE PICTURE THROUGH TUESDAY NIGHT/EARLY WEDNESDAY
MORNING.
AS FAR AS WINTERY PRECIPITATION...BOTH GFS AND ECMWF ARE NOW
FAVORING A DRIER AND WARMER SOLUTION AS THE UPPER LOW SWINGS
ACROSS THE STATE. HOWEVER...COULD SEE VERY BRIEF LIGHT SNOW ACROSS
NORTHWESTERN VAL VERDE COUNTY EARLY TUESDAY MORNING. TEMPERATURES
WEDNESDAY MORNING ARE EXPECTED TO BE A FEW DEGREES COOLER THAN
TUESDAY...BUT MOST OF THE MOISTURE WILL BE SCOURED OUT BY THAT
TIME. HOWEVER...THERE ARE A FEW HOURS EARLY WEDNESDAY MORNING
WHERE TEMPERATURES COULD BE COLD ENOUGH TO SUPPORT SNOW ACROSS THE
EASTERN HILL COUNTRY BEFORE RAIN CHANCES END. ONLY COLD RAIN IS
ANTICIPATED ACROSS THE METRO AREAS. WITH ALL OF THAT SAID...NO
ACCUMULATIONS OF ANY FROZEN PRECIP ARE EXPECTED.
ONCE THE UPPER LOW PUSHES OFF TO THE EAST DURING THE MIDDLE OF THE
WEEK...HIGH PRESSURE WILL BEGIN TO BUILD IN. THIS WILL ENABLE
SKIES TO CLEAR LEADING TO SEASONABLY COOL MORNINGS AND
PROGRESSIVELY WARMER AFTERNOONS THROUGH THE END OF THE WEEK.
&&
.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY 62 73 50 50 42 / 10 30 80 70 40
AUSTIN BERGSTROM INTL AIRPORT 59 72 52 52 43 / 10 30 80 80 40
NEW BRAUNFELS MUNI AIRPORT 60 73 50 50 41 / - 20 80 90 50
BURNET MUNI AIRPORT 58 68 46 48 39 / 10 40 70 50 40
DEL RIO INTL AIRPORT 53 71 49 52 37 / - 20 70 70 50
GEORGETOWN MUNI AIRPORT 60 70 47 52 40 / 10 40 80 50 40
HONDO MUNI AIRPORT 57 72 50 52 39 / - 20 70 80 50
SAN MARCOS MUNI AIRPORT 60 73 50 50 41 / - 30 80 80 50
LA GRANGE - FAYETTE REGIONAL 62 75 52 53 42 / 10 30 80 80 60
SAN ANTONIO INTL AIRPORT 60 73 51 52 41 / - 20 80 90 50
STINSON MUNI AIRPORT 59 74 52 52 42 / - 20 80 90 50
&&
.EWX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&
$$
13/02
