FXUS64 KEWX 160954
AFDEWX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
354 AM CST WED DEC 16 2009

.DISCUSSION...
A WEAK UPPER LOW NEAR BIG BEND WILL SLOWLY LIFT NEWD ACROSS CENTRAL
TX OVER THE NEXT 24 HOURS. WITH THE COLD AIR AIRMASS AT THE SURFACE
...OVERRUNNING CLOUDS AND LIGHT RAIN/SHOWERS WILL PERSIST ACROSS
THE AREA TODAY. THEREFORE UNSEASONABLY COLD TODAY AS THE OVERCAST
CLOUDS DO NOT ALLOW FOR MUCH WARMING AND TEMPERATURES REMAINING IN
THE 40S. HAVE UNDERCUT MAV GUIDANCE TEMPERATURES BY 5-8 DEGREES. BEST
RAIN CHANCES WILL BE ACROSS THE SRN COUNTIES...ALTHOUGH SOME
SPRINKLES COULD PUSH AS FAR NORTHWARD AS THE HILL COUNTRY BY THIS
EVENING WITH THE UPPER LOW. THE PRECIPITATION WILL END FROM THE
WEST LATE TONIGHT AND EARLY THURSDAY ALONG WITH DECREASING CLOUDS
AND WARMER TEMPERATURES FOR THURSDAY AFTERNOON.

BY FRIDAY AND INTO THE WEEKEND...UPPER RIDGING OVER THE WEST
CONUS AND A DEEP TROF ON THE EAST COAST WILL RESULT IN A COOL-DRY
NWLY FLOW ACROSS THE CENTRAL U.S. THIS PATTERN WILL PERSIST INTO
MUCH OF NEXT WEEK...AND THEREFORE A BIT MORE DIURNAL VARIATION IN
TEMPERATURES(COLD NIGHTS AND COOL-MILD DAYS) AS A SERIES OF
REINFORCING COLD FRONTS KEEP A COOL-DRY AIRMASS IN PLACE.

BY LATE NEXT WEEK INTO CHRISTMAS...LONG RANGE MODELS SHOW AN OUTBREAK
OF ARCTIC AIR INTO SOUTH TX. HAVE INCLUDED A SLIGHT CHANCE OF RAIN
AHEAD OF AND JUST BEHIND THE FRONT ON WED/THU...ALTHOUGH GIVEN THE
UPPER AIR PATTERN FEEL ANY PRECIPITATION WOULD GENERATED IN THE
LOWER LEVELS NEAR THE FRONTAL BOUNDARY...AND THEREFORE LIGHT AND
SHORT LIVED.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              46  40  59  42  65 /  10  10  10   0   0 
AUSTIN BERGSTROM INTL AIRPORT  46  40  58  37  65 /  20  10  10   0   0 
NEW BRAUNFELS MUNI AIRPORT     45  41  60  40  65 /  30  20  10   0   0 
BURNET MUNI AIRPORT            46  39  57  39  62 /  10  10  10   0   0 
DEL RIO INTL AIRPORT           49  41  65  43  67 /  10  10   0   0   0 
GEORGETOWN MUNI AIRPORT        46  39  58  39  63 /  10  10  10   0   0 
HONDO MUNI AIRPORT             47  41  62  40  65 /  30  10  10   0   0 
SAN MARCOS MUNI AIRPORT        45  40  59  40  65 /  20  20  10   0   0 
LA GRANGE - FAYETTE REGIONAL   45  40  56  39  63 /  20  30  10   0   0 
SAN ANTONIO INTL AIRPORT       46  42  61  42  66 /  30  10  10   0   0 
STINSON MUNI AIRPORT           45  42  62  42  67 /  30  20  10   0   0 

&&

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

$$

01/05