DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 010700
SWODY2
SPC AC 010659

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1259 AM CST SAT DEC 01 2012

VALID 021200Z - 031200Z

...NO TSTM AREAS FORECAST...

...SYNOPSIS...
SOME AMPLIFICATION OF THE UPPER FLOW FIELD IS FORECAST THIS
PERIOD...AS A SHORT-WAVE TROUGH EMBEDDED IN FAST WLY FLOW MOVES FROM
THE PAC NW COAST TO THE NRN PLAINS THROUGH THE PERIOD. AS THIS
OCCURS...A SURFACE CYCLONE IS FORECAST TO PROGRESS EWD ACROSS THE
NRN INTERMOUNTAIN REGION INVOF THE U.S./CANADA BORDER. A TRAILING
COLD FRONT WILL CROSS THE INTERMOUNTAIN REGION THROUGH THE DAY...AND
BEGIN TO EMERGE INTO THE NRN PLAINS AFTER DARK. BY THE END OF THE
PERIOD...THE MAIN COLD FRONT SHOULD STRETCH FROM THE MN VICINITY
SWWD INTO CO.

WHILE PRECIPITATION WILL ACCOMPANY THE PASSAGE OF THIS STORM SYSTEM
AS IT CROSSES THE WEST...A LACK OF INSTABILITY SHOULD PRECLUDE ANY
APPRECIABLE LIGHTNING POTENTIAL.

AS THE SYSTEM EMERGES INTO THE PLAINS LATE...AN INCREASING SWLY
LOW-LEVEL JET ADVECTING MOISTURE NWD SHOULD RESULT IN A LESS STABLE
AIRMASS WITH TIME ACROSS THE CENTRAL PLAINS REGION. HOWEVER...
DEVELOPMENT OF ELEVATED CAPE STILL APPEARS UNLIKELY ATTM -- THUS
PRECLUDING INTRODUCTION OF A THUNDER AREA THIS FORECAST.

..GOSS.. 12/01/2012

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