SWODY3
SPC AC 030640
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1240 AM CST MON DEC 03 2007
VALID 051200Z - 061200Z
..NO SVR TSTM AREAS FORECAST...
..SYNOPSIS...
THE CONFLUENCE OF SPLIT POLAR STREAMS INTO A BROAD TROUGH OVER THE
U.S. WILL CONTINUE THROUGH THIS FORECAST PERIOD. WITHIN THE
SOUTHERN BRANCH...EMANATING FROM THE MID-LATITUDE PACIFIC...MODELS
INDICATE THAT ONE SIGNIFICANT SHORT WAVE TROUGH WILL DIG ACROSS THE
NORTHERN GREAT BASIN AND CENTRAL ROCKIES...AS ANOTHER DIGS WEST OF
NORTH CENTRAL PACIFIC COASTAL AREAS. THE LEAD IMPULSE IS PROGGED TO
SUPPORT AT LEAST WEAK SURFACE CYCLOGENESIS TO THE LEE OF THE
SOUTHERN ROCKIES. BUT...WITH THE BOUNDARY LAYER OVER THE GULF OF
MEXICO ONLY BEGINNING TO MODIFY IN THE WAKE OF A SERIES OF COLD
INTRUSIONS...AND RETURN FLOW INLAND SLOW TO DEVELOP...THE SEVERE
THUNDERSTORM POTENTIAL APPEARS NEGLIGIBLE WITH DEVELOPING SYSTEM.
AND...THE CONVECTIVE POTENTIAL IN GENERAL WILL LIKELY REMAIN LOW
ACROSS MUCH OF THE NATION THROUGH AT LEAST EARLY THURSDAY.
.KERR.. 12/03/2007
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