FXUS64 KEWX 250222
AFDEWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
822 PM CST THU DEC 24 2009
.UPDATE...
SANTA WILL HAVE CLEAR SAILING SOUTHEAST INTO THE REGION LATE TONIGHT
AS SKIES HAVE CLEARED THROUGHOUT MUCH OF SOUTH CENTRAL TEXAS LATE
THIS EVENING. NORTHWEST WINDS HAVE LESSENED THIS EVENING BUT GUSTY
WINDS OVER 20 MPH WERE STILL IN EVIDENCE ACROSS THE EASTERN HILL
COUNTRY AND ALONG AND EAST OF THE I-35 CORRIDOR. SKY GRIDS WERE
AMENDED AS SKIES HAD CLEARED..OTHERWISE FORECAST GRIDS LOOK ON
TARGET. UPDATED TEXT FORECASTS OUT SOON.
&&
.PREV DISCUSSION... /ISSUED 520 PM CST THU DEC 24 2009/
AVIATION...
STRONG NWLY WINDS OF 15-25 KNOTS WILL GRADUALLY SUBSIDE THIS
EVENING TO 5-10 KNOTS BY 06Z. OTHERWISE VFR...EXCEPT A FEW CIGS
AT 3-4 THSD BKN IN THE KAUS VICINITY...BECOMING CLEAR ALL AREAS BY
03Z. LIGHT AND VARIABLE WINDS WILL PREVAIL BY FRIDAY MORNING AS
THE SURFACE RIDGE SETTLES IN OVER S TX. WINDS WILL SNAP BACK TO
A SLY DIRECTION BY AFTERNOON AS THE SURFACE RIDGE SLIPS EASTWARD.
PREV DISCUSSION... /ISSUED 325 PM CST THU DEC 24 2009/
DISCUSSION...
OVERCAST SKIES AND LIGHT PRECIPITATION WILL CONTINUE TO SWEEP
ACROSS THE EASTERN HILL COUNTRY AND CENTRAL TEXAS. SNOW FLURRIES
ARE EXPECTED ALONG AND NORTHEAST OF A LINE FROM LLANO TO AUSTIN TO
COLLEGE STATION THIS EVENING. HOWEVER...IT WILL BE A BRIEF DELIGHT
AS SURFACE TEMPERATURES ARE TOO WARM TO SUPPORT ACCUMULATIONS.
STRONG NORTHWEST WINDS WILL CONTINUE TO FILTER INTO THE REGION
OVERNIGHT. SUSTAINED WINDS ARE GRADUALLY SUBSIDING AND SHOULD
FALL BELOW WIND ADVISORY CRITERIA (26 MPH) SHORTLY AFTER SUNSET.
CURRENT ADVISORY IS UNTIL 6 PM AND THUS WILL LEAVE AS IS. SKIES
WILL CONTINUE TO CLEAR FROM THE WEST AS THE UPPER LOW PROGRESSES
EASTWARD TOWARD THE MISSISSIPPI RIVER VALLEY. COUPLED WITH
DECREASING WINDS AND PERSISTANT COLD AIR ADVECTION...TEMPERATURES
WILL DROP TO BELOW FREEZING ACROSS THE HILL COUNTRY BEFORE
MIDNIGHT WITH SUB-FREEZING TEMPERATURES ACROSS THE ENTIRE REGION
CHRISTMAS MORNING.
TEMPERATURES THROUGH THE HOLIDAY WEEKEND WILL BE BELOW NORMAL AS
COLD AIR KEEPS FILTERING IN. FLAT ZONAL FLOW WILL PREVAIL ALOFT
ENABLING A GRADUAL RETURN OF CLOUDS. FREEZES ARE EXPECTED EACH
MORNING WITH TEMPERATURES WARMING ONLY INTO THE 50S DURING THE
AFTERNOON. CHANCES FOR RAIN BRIEFLY ENTER THE PICTURE ACROSS THE
COASTAL PLAINS ON SATURDAY AS A COASTAL LOW DEVELOPS.
CHILLY CONDITIONS ARE EXPECTED AGAIN ON MONDAY AS ANOTHER SURGE OF
COLD AIR PUSHES IN. CHANCES FOR RAIN WILL INCREASE ACROSS MUCH
OF THE REGION AS A SECOND COASTAL TROUGH DEVELOPS AND A WEAKNESS
IN THE UPPER FLOW APPROACHES FROM THE WEST. WITH OVERNIGHT
TEMPERATURES ONCE AGAIN DIPPING INTO THE MID-30S AND LOWER...COULD
SEE A MIX OF RAIN AND SLEET MONDAY NIGHT AND TUESDAY MORNING. THE
WET PATTERN REMAINS THROUGH WEDNESDAY MORNING WITH ANOTHER CHANCE
FOR A WINTERY MIX. HOWEVER...CONFIDENCE IS LOW TO MODERATE AT
BEST WITH THE UNDERSTANDING THAT FUTURE FORECAST PACKAGES WILL
VARY GIVEN THE TENDENCY FOR MODEL GUIDANCE TO BE DISCREPANT THIS
FAR OUT.
&&
.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY 31 52 30 54 31 / 0 0 - - -
AUSTIN BERGSTROM INTL AIRPORT 28 50 22 51 25 / 0 0 - - -
NEW BRAUNFELS MUNI AIRPORT 28 53 28 55 31 / 0 0 - - -
BURNET MUNI AIRPORT 26 49 27 50 28 / 0 0 - - -
DEL RIO INTL AIRPORT 29 55 31 58 33 / 0 0 0 - 0
GEORGETOWN MUNI AIRPORT 28 49 29 52 30 / 0 0 - - -
HONDO MUNI AIRPORT 26 55 27 54 31 / 0 0 - - -
SAN MARCOS MUNI AIRPORT 28 51 26 55 30 / 0 0 - - -
LA GRANGE - FAYETTE REGIONAL 31 52 31 52 30 / 0 0 - 10 10
SAN ANTONIO INTL AIRPORT 31 54 30 55 33 / 0 0 - - -
STINSON MUNI AIRPORT 30 55 29 55 32 / 0 0 - - -
&&
.EWX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&
$$
02/01
