SWODY1
SPC AC 251227
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0627 AM CST SUN DEC 25 2011
VALID 251300Z - 261200Z
...NO SVR TSTM AREAS FORECAST...
...NW GULF COAST TODAY TO THE ARKLATEX/SE OK TONIGHT...
THE MIDLEVEL LOW OVER THE TX SOUTH PLAINS WILL WOBBLE WNWWD AS ONE
EMBEDDED SHORTWAVE TROUGH ROTATES NWWD FROM NW TX...AND ANOTHER WAVE
PIVOTS ESEWD OVER NW/N CENTRAL MEXICO. AN INITIAL LLJ FROM THE NW
GULF OF MEXICO TO SW LA WILL WEAKEN TODAY...THOUGH MOISTURE
TRANSPORT AND WEAK ELEVATED INSTABILITY WILL SUPPORT A RISK FOR
ISOLATED THUNDERSTORMS TODAY ACROSS SRN LA/SW MS...ROOTED IN THE
850-700 MB LAYER. THE RISK FOR ISOLATED THUNDERSTORMS WILL EXPAND
NWWD TONIGHT AS ANOTHER BRANCH OF LOW-LEVEL SLY FLOW DEVELOPS OVER
THE SABINE RIVER VALLEY TO THE ARKLATEX. SOME MOISTENING ALONG THIS
CORRIDOR WILL RESULT IN MUCAPE OF 75-150 J/KG BASED NEAR 700 MB.
SINCE ELEVATED INSTABILITY WILL REMAIN WEAK AND THE SURFACE WARM
SECTOR WILL REMAIN OFFSHORE ACROSS THE NW GULF...SEVERE STORMS ARE
NOT EXPECTED.
..THOMPSON/COHEN.. 12/25/2011
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