FXUS64 KEWX 021728
AFDEWX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1128 AM CST WED DEC 2 2009

.AVIATION...
SATELLITE IMAGERY AND UPSTREAM OBS CLEARLY INDICATE INCREASING
MVFR CIGS AT ALL TAF SITES IN THE NEXT HOUR OR TWO. THE LATEST
MODEL DATA INDICATE BKN-OVC CIGS THROUGH THE ENTIRE FORECAST
PERIOD. WINDS FROM 320-340 DEGREES AT 15-25 KTS WILL CONTINUE
THROUGH THE AFTERNOON...BUT TAPER OFF TO 10 KTS OR LESS AND SWING
TO 350-010 DEGREES AFTER 02 UTC 3 DEC.

&&

.PREV DISCUSSION... /ISSUED 1004 AM CST WED DEC 2 2009/ 

UPDATE...
UPDATED FORECAST TO DECREASE 1ST PERIOD MAX TEMPS GIVEN COLD AIR
ADVECTION AND TRENDS IN LATEST SURFACE OBSERVATIONS. ALSO DROPPED 
MENTION OF RAIN FRIDAY AND WENT WITH ONLY SNOW FOR MOST OF OUR
AREA. THE 12Z NAM12 FORECAST SOUNDINGS SHOW CLASSIC SNOW TRACES FOR
ALL BUT OUR SE COUNTIES...WHERE A MIX OF RAIN AND SNOW IS POSSIBLE
FRIDAY MORNING BEFORE TURNING OVER TO SNOW. HIGH TEMPERATURES ARE
TRICKY FRIDAY...AND WILL LIKELY OCCUR PRIOR TO THE ONSET OF
PRECIP. THE 12Z NAM12 SNOW AMOUNTS ARE SLIGHTLY LESS THAN THE 00Z
RUN...WHICH MATCHES BETTER WITH THE PERCEIVED SNOWFALL POTENTIAL
GIVEN THE EVENT TYPE. WILL WAIT FOR MORE 12Z MODEL DATA BEFORE
CHANGING THE FORECAST SNOW AMOUNTS...BUT THE TREND MAY BE DOWN
FROM THE PREVIOUS FORECAST GIVEN THE 12Z NAM12 OUTPUT.

NEW SUITE OF PRODUCTS OUT SHORTLY. 

&&

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

$$

11/26