ACUS01 KWNS 271222
SWODY1
SPC AC 271219
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0619 AM CST THU DEC 27 2012
VALID 271300Z - 281200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS AND FORECAST...
AN INTENSE SHORTWAVE TROUGH FROM THE LOWER GREAT LAKES TO OFF THE
MID-ATLANTIC COAST WILL LIFT NEWD THROUGH NEW ENGLAND IN RESPONSE TO
THE EWD PROGRESSION OF A SHORTWAVE TROUGH THROUGH THE NRN/CNTRL
PLAINS...AND THE AMPLIFICATION OF A LOWER-LATITUDE SYSTEM ACROSS THE
LOWER CO VALLEY INTO SRN ROCKIES. IN THE LOW LEVELS...A SURFACE LOW
JUST S OF LONG ISLAND WILL DEVELOP NNEWD INTO THE CANADIAN
MARITIMES. FARTHER TO THE SW...DEVELOPING LOW PRESSURE ALONG THE
LOWER RIO GRANDE VALLEY WILL PROMOTE THE SWD MOVEMENT OF A COLD
FRONT THROUGH THE CNTRL/SRN HIGH PLAINS.
ISOLATED LIGHTNING STRIKES WILL BE POSSIBLE TODAY WITHIN A ZONE OF
STRONG FORCING FOR ASCENT/DCVA OVER AZ...AND TONIGHT WITHIN A
STRENGTHENING LOW-LEVEL WAA/MOISTURE ADVECTION REGIME FROM THE UPPER
TX COAST INTO LOWER MS VALLEY. ANTICIPATED TSTM COVERAGE APPEARS
TOO MARGINAL TO WARRANT THE INCLUSION OF A GENERAL TSTM AREA.
..MEAD/LEITMAN.. 12/27/2012
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