SWODY3
SPC AC 150611
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0111 AM CDT SUN MAR 15 2009
VALID 171200Z - 181200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A WEAK SRN STREAM MID-LEVEL TROUGH -- INITIALLY FORECAST OVER THE
ERN U.S. -- IS OFF THE ATLANTIC COAST THIS PERIOD...WITH FLOW OVER
THE REMAINDER OF THE CONUS TO TREND TOWARD A MORE ZONAL REGIME WITH
TIME S OF A TROUGH CROSSING CENTRAL CANADA.
WHILE A WEAK SURFACE BOUNDARY -- AND ASSOCIATED POTENTIAL FOR
SCATTERED SHOWERS AND A FEW THUNDERSTORMS -- SHIFTS SWD ACROSS FL IN
CONJUNCTION WITH THE ERN U.S. SRN STREAM TROUGH...A STRONGER FRONT
IS PROGGED TO MOVE SEWD ACROSS THE CENTRAL CONUS.
AHEAD OF THIS FRONT HOWEVER...A CLOSED GULF SUGGESTS ONLY MEAGER
MOISTURE RETURN...WHILE WLY FLOW ALOFT ADVECTS AN ELEVATED MIXED
LAYER INTO THE PLAINS. THE RESULTING LACK OF MOISTURE/INSTABILITY
IN CONJUNCTION WITH A LIKELY-TO-BE-CAPPED BOUNDARY LAYER SUGGEST
LITTLE POTENTIAL FOR SURFACE-BASED/WARM SECTOR STORMS.
..GOSS.. 03/15/2009
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