SWODY3
SPC AC 290643
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1243 AM CST MON DEC 29 2008
VALID 311200Z - 011200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
AS A MID-LEVEL SHORT-WAVE TROUGH CROSSING THE NORTHEAST U.S. THROUGH
THE FIRST HALF OF THE PERIOD MOVES OFFSHORE ALONG WITH THE
ASSOCIATED SURFACE SYSTEM...A SECOND TROUGH ALOFT WILL MOVE ACROSS
THE NWRN QUARTER OF THE CONUS REACHING THE NRN HIGH PLAINS LATE.
LEE TROUGHING OVER THE HIGH PLAINS WILL INCREASE AHEAD OF THE WRN
UPPER SYSTEM...RESULTING IN THE DEVELOPMENT OF SLY LOW-LEVEL FLOW
OVER THE CENTRAL CONUS E OF THE LEE TROUGH AND W OF THE RETREATING
SURFACE HIGH. HOWEVER...SURFACE RIDGING SHOULD PERSIST ACROSS THE
SRN PLAINS THROUGH THE PERIOD...WHICH WILL HINDER APPRECIABLE
MOISTURE RETURN INTO THE CENTRAL STATES AND THUS PRECLUDE ANY
THUNDER THREAT THROUGH THE PERIOD.
..GOSS.. 12/29/2008
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