SPC AC 010553
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1153 PM CST THU NOV 30 2006
VALID 021200Z - 031200Z
...NO TSTM AREAS FORECAST...
ALTHOUGH THE MOST SIGNIFICANT EMBEDDED SHORT WAVE IMPULSE IS PROGGED
TO CONTINUE ACCELERATING OFF THE NORTH ATLANTIC COAST... MODELS
SUGGEST THAT AN AMPLIFIED TROUGH IN THE POLAR WESTERLIES WILL
PERSIST ACROSS MUCH OF THE NATION EAST OF THE ROCKIES THROUGH THIS
FORECAST PERIOD. UPSTREAM RIDGING WILL LINGER ALONG THE PACIFIC
COAST...WITH ANOTHER BROAD TROUGH IN THE SUBTROPICAL STREAM...WEST
OF BAJA...BEFORE THIS BELT OF FLOW MERGES INTO THE BASE OF THE POLAR
TROUGH...ACROSS THE GULF AND SOUTH ATLANTIC COASTS.
THE EVOLVING UPPER PATTERN WILL SUPPORT THE DEVELOPMENT OF A LARGE
COLD SURFACE RIDGE...WHICH WILL ENCOMPASS MUCH OF THE NATION BY 12Z
SATURDAY. THE EXCEPTION WILL BE THE SOUTHERN FLORIDA PENINSULA...
WHERE WARM AND HUMID CONDITIONS WILL PERSIST SATURDAY...TO THE SOUTH
OF THE STALLING LEADING EDGE OF THE COLD INTRUSION ACROSS THE
CENTRAL PENINSULA. THE PRE-FRONTAL ENVIRONMENT LIKELY WILL REMAIN
CAPPED BY A MID-LEVEL SUBTROPICAL RIDGE. AND...RELATIVELY WARM
MID-LEVELS ARE EXPECTED TO MINIMIZE CONVECTIVE POTENTIAL IN A BELT
OF LOW-LEVEL ISENTROPIC ASCENT TO THE NORTH OF THE SURFACE
BOUNDARY...ACROSS NORTHERN FLORIDA INTO SOUTHERN GEORGIA/COASTAL
SOUTH CAROLINA. RISK OF THUNDERSTORMS SATURDAY/SATURDAY NIGHT
ACROSS THE SOUTHEAST...AND THE REMAINDER OF THE U.S...APPEARS
NEGLIGIBLE.
..KERR.. 12/01/2006
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z
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