SWODY3
SPC AC 240830
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0230 AM CST WED FEB 24 2010
VALID 261200Z - 271200Z
...SYNOPSIS...
SRN STREAM WILL REMAIN PROGRESSIVE ON DAY 3 /FRI/ AS THE SHORTWAVE
TROUGH MOVING INTO THE SRN PLAINS ON THU WILL MOVE ESEWD TO THE NWRN
GULF COAST/LOWER MS VALLEY BY LATE FRIDAY AFTERNOON AND REACH THE
CENTRAL GULF COAST/NRN GULF OF MEXICO BY 12Z SATURDAY. AN ATTENDANT
A WEAK SURFACE LOW LOCATED OVER SRN OK/N TX...AND A TRAILING COLD
FRONT EXTENDING SSWWD THROUGH TX AT THE BEGINNING OF DAY 3 WILL
SPREAD SEWD REACHING THE CENTRAL PART OF THE GULF OF MEXICO BY 12Z
SATURDAY.
...UPPER TX/LA COAST TO ARKLATEX...
STEEP MID LEVEL LAPSE RATES AND FORCING FOR ASCENT SPREADING SEWD
ACROSS THIS REGION ATTENDANT TO THE SHORTWAVE TROUGH COMBINED WITH
LOW LEVEL WAA SHOULD SUPPORT CONVECTION/EMBEDDED TSTMS BY FRIDAY
AFTERNOON OVER SE TX. THIS ACTIVITY WILL DEVELOP ESEWD THROUGH LA
AND THE NWRN TO NORTH CENTRAL GULF OF MEXICO THROUGH LATE FRIDAY
NIGHT. DESPITE STEEP LAPSE RATES...LIMITED MOISTURE RETURN AHEAD OF
THIS SYSTEM WILL RESULT IN WEAK INSTABILITY...PRECLUDING ANY SEVERE
WEATHER THREAT.
..PETERS.. 02/24/2010
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