SWODY1
SPC AC 300544
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1144 PM CST MON DEC 29 2008
VALID 301200Z - 311200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS AND FORECAST...
LARGE-SCALE PATTERN WILL UNDERGO AMPLIFICATION DURING THE DAY ONE
PERIOD AS MIDLEVEL TROUGH TRANSLATING SEWD FROM THE NRN PLAINS
PHASES WITH UPPER VORTEX CENTERED OVER HUDSON BAY. AS THIS
OCCURS...THE NEXT UPSTREAM IMPULSE WILL MOVE ONTO THE BRITISH
COLUMBIA COAST.
IN THE LOW LEVELS...SURFACE LOW ATTENDANT TO ABOVEMENTIONED SHORT
WAVE TROUGH WILL DEVELOP FROM ERN SD ACROSS THE OH VALLEY. TRAILING
COLD FRONT WILL SURGE SEWD THROUGH THE PLAINS AND MS VALLEY. WHILE
SLY SURFACE WINDS WILL BE MAINTAINED AHEAD OF COLD FRONT...FLOW
ABOVE THE SURFACE WILL BECOME DECIDEDLY WLY...LIMITING THE POTENTIAL
FOR ANY MEANINGFUL MOISTURE RETURN. AS SUCH...NO TSTM DEVELOPMENT
IS FORECAST THROUGH THE PERIOD.
..MEAD.. 12/30/2008
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