SWODY2
SPC AC 091714
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1114 AM CST THU DEC 09 2010
VALID 101200Z - 111200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS...
FAST UPPER FLOW FIELD ACROSS THE CONUS IS FORECAST TO AMPLIFY DAY
2...AS A SHORT-WAVE TROUGH CROSSING THE GREAT LAKES/NORTHEAST/NEW
ENGLAND IS REPLACED BY A MUCH STRONGER TROUGH DIGGING SEWD ACROSS
THE ROCKIES TOWARD THE CENTRAL CONUS. BY THE END OF THE PERIOD...A
LARGE TROUGH SHOULD BE CENTERED OVER THE CENTRAL U.S. WITH BROAD
CYCLONIC FLOW AFFECTING ALL BUT THE W COAST.
AT THE SURFACE...LEE TROUGHING E OF THE ROCKIES WILL BEGIN MIGRATING
EWD ACROSS THE CENTRAL U.S. AS UPPER TROUGHING DIGS SEWD. MODELS
DIFFER WITH RESPECT TO INTENSITY AND LOCATION OF STRONGEST
CYCLOGENESIS...BUT IN GENERAL EXPECT A DEVELOPING LOW TO BE LOCATED
INVOF IA AT THE END OF THE PERIOD...WITH A CONSOLIDATING COLD FRONT
STRETCHING SSWWD ACROSS THE PLAINS.
DESPITE THE STRENGTH OF THIS SYSTEM... BOUNDARY-LAYER MOISTURE
RETURN INTO THE S CENTRAL U.S. THROUGH SATURDAY MORNING WILL PROVE
INSUFFICIENT FOR APPRECIABLE SURFACE-BASED DESTABILIZATION.
MEANWHILE...INCREASING LOWER TROPOSPHERIC SLYS/SWLYS WILL YIELD
INCREASING WARM ADVECTION...BUT GIVEN WEAK MID-LEVEL LAPSE
RATES...APPRECIABLE ELEVATED CAPE DEVELOPMENT IS ALSO NOT EXPECTED.
THEREFORE...WILL MAINTAIN NO THUNDER FORECAST ATTM...WITH THUNDER
POTENTIAL LIKELY TO REMAIN LIMITED TO BEYOND THE DAY 2 PERIOD.
..GOSS.. 12/09/2010
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