SWODY1
SPC AC 060520
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1120 PM CST MON DEC 05 2011
VALID 061200Z - 071200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS...
A BROAD BELT OF SWLY FLOW ALOFT WILL EXTEND FROM TX ACROSS THE ERN
STATES WITH AN UPPER TROUGH AXIS FROM LAKE SUPERIOR SWWD INTO NM TUE
MORNING. THIS TROUGH WILL BEGIN TO ACCELERATE LATE IN THE DAY AND
OVERNIGHT...MOVING INTO THE LOWER MS VALLEY BY WED MORNING.
AT THE SURFACE...A WEAK COLD FRONT WILL MOVE INTO SRN NEW ENGLAND
AND EXTEND SWWD ALONG THE APPALACHIANS BY WED AFTERNOON. SLY FLOW
AHEAD OF THE FRONT WILL RESULT IN WIDESPREAD UPPER 50S TO LOWER 60S
F BOUNDARY LAYER DEWPOINTS INTO THE DELMARVA.
BANDS OF MAINLY RAIN SHOWERS SHOULD PERSIST THROUGH THE PERIOD ALONG
THE FRONT...BUT SEVERE WEATHER IS UNLIKELY DESPITE STRONG SHEAR AS A
RESULT OF VERY POOR LAPSE RATES ALOFT. IN FACT...LIGHTNING STRIKES
MAY NOT OCCUR WITH MOST OF THE CONVECTION AS IT WILL BE SHALLOW. THE
BEST RELATIVE THREAT OF DEEPER CONVECTION IS LIKELY TO BE FROM NRN
VA ACROSS MD AND INTO FAR SRN NEW ENGLAND WHERE LIFT FROM WARM
ADVECTION WILL BE MAXIMIZED.
..JEWELL/GARNER.. 12/06/2011
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