FXUS64 KEWX 242125
AFDEWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
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...
WIND ADVISORY UNTIL 6 PM CST THIS EVENING FOR THE FOLLOWING
COUNTIES: ATASCOSA...BANDERA...BASTROP...BEXAR...BLANCO...BURNET...
CALDWELL...COMAL...DE WITT...DIMMIT...EDWARDS...FAYETTE...FRIO...
GILLESPIE...GONZALES...GUADALUPE...HAYS...KARNES...KENDALL...KERR...
KINNEY...LAVACA...LEE...LLANO...MAVERICK...MEDINA...REAL...TRAVIS...
UVALDE...VAL VERDE...WILLIAMSON...WILSON...ZAVALA.
&&
$$
25/08
