SWODY1
SPC AC 190055
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0655 PM CST FRI DEC 18 2009
VALID 190100Z - 191200Z
...NO SVR TSTM AREAS FORECAST...
...SERN STATES...
UPR TROUGH EXTENDING FROM THE CNTRL APLCNS TO FL AT 00Z WILL
CONTINUE ENE OFF THE ATLC SEABOARD TONIGHT AS A SECONDARY JET STREAK
DEVELOPS EWD INTO THE SERN STATES. SFC LOW WAS BEGINNING TO
CONSOLIDATE JUST OFFSHORE SC AND WILL INTENSIFY AS IT MOVES NEWD
INVOF KHAT BY 12Z.
A TRAILING CDFNT WILL BEGIN TO ACCELERATE ACROSS THE REMAINDER OF FL
TONIGHT. VEERED FLOW AHEAD OF IT...OWING TO PASSAGE OF AN EARLY DAY
SUBTROPICAL WAVE...WILL PRECLUDE DEEP MOIST CONVECTION ALONG THE
FRONT.
FARTHER N...A BURST OR TWO OF TSTMS CAN BE EXPECTED AS THE UPSTREAM
PV-ANOMALY SWINGS ENE INTO PARTS OF CSTL SC/NC LATER TONIGHT. THESE
STORMS WILL FORM ATOP A SHALLOW COLD DOME W OF THE MARINE FRONT WITH
HIGHER PROBABILITIES FOR SFC-BASED STORMS RELEGATED TO THE NEARSHORE
WATERS OF NC/SC.
MEANWHILE...ISOLD LIGHTNING /LESS THAN 10 PERCENT PROBABILITY/ MAY
ALSO ACCOMPANY HEAVIER BANDED PCPN AMIDST THE DEFORMATION ZONE
ACROSS THE ERN SLOPES OF THE VA/NC MOUNTAINS THROUGH TONIGHT.
..RACY.. 12/19/2009
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