SWODY2
SPC AC 180557
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1257 AM CDT WED MAR 18 2009
VALID 191200Z - 201200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
UPPER TROUGH OVER ERN CANADA AND EXTENDING SWD ACROSS THE GREAT
LAKES INTO THE MIDWEST REGION IS FORECAST TO EXPAND/AMPLIFY AS IT
CONTINUES EWD ACROSS THE ERN CONUS. MEANWHILE...A SECOND TROUGH/LOW
OVER THE NERN PACIFIC IS EXPECTED TO APPROACH WRN CANADA/THE PAC NW
LATE.
AT THE SURFACE...A WEAK FRONT WILL CONTINUE SAGGING SWD ACROSS THE
SERN QUARTER OF THE COUNTRY -- AND MAY BE A FOCUS FOR WEAK
CONVECTION THIS PERIOD.
...MID-SOUTH REGION...
MINIMAL INSTABILITY AHEAD OF A SEWD-MOVING FRONT MAY SUPPORT
WEAK/MAINLY-DIURNAL CONVECTIVE DEVELOPMENT -- FROM THE CAROLINAS WWD
TO TX...BUT MOST LIKELY ACROSS PORTIONS OF THE MID-SOUTH REGION.
INSTABILITY/SHEAR COMBINATION...HOWEVER...WILL REMAIN INSUFFICIENT
TO SUPPORT ANY APPRECIABLE SEVERE THREAT.
..GOSS.. 03/18/2009
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