SWODY3
SPC AC 270715
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0115 AM CST WED JAN 27 2010
VALID 291200Z - 301200Z
...SRN LA/TX COASTAL PLAIN...
AN UPPER-LEVEL TROUGH IS FORECAST TO MOVE ACROSS THE SRN PLAINS
FRIDAY AS A COLD FRONT ADVANCES SEWD ACROSS THE TX COASTAL PLAINS
INTO THE WRN GULF OF MEXICO. THUNDERSTORMS SHOULD BE ONGOING FRIDAY
MORNING ALONG THE LOWER TO MIDDLE TX COAST AND SHOULD MOVE QUICKLY
OFFSHORE BY MIDDAY. THE NERN PORTION OF THE LINE IS FORECAST TO MOVE
ACROSS SE TX AND SRN LA WHERE A MARGINAL SEVERE THREAT MAY EXIST
FRIDAY MORNING. FORECAST SOUNDINGS IN SRN LA AT 18Z SHOW 50 KT OF
0-6 KM SHEAR...SFC DEWPOINTS AROUND 60 F AND ABOUT 40 KT OF FLOW AT
1 KM. THIS MAY SUPPORT AN ISOLATED WIND DAMAGE THREAT. THE SEVERE
THREAT MAY INCREASE SOMEWHAT DUE TO WARMING SFC TEMPS BY EARLY
AFTERNOON AS THE LINE MOVES INTO SERN LA. HOWEVER...INSTABILITY
SHOULD STILL BE WEAK SUGGESTING THE THREAT WILL REMAIN MARGINAL.
..BROYLES.. 01/27/2010
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