Friday, January 6, 2012

DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 060605
SWODY2
SPC AC 060604

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1204 AM CST FRI JAN 06 2012

VALID 071200Z - 081200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
AS WEAK UPPER TROUGHING OVER THE ERN U.S. CONTINUES EWD INTO THE
ATLANTIC THROUGH THE PERIOD...A SECOND SHORT-WAVE TROUGH INITIALLY
OVER THE GREAT BASIN WILL CONTINUE DIGGING SEWD...CROSSING THE FOUR
CORNERS AND REACHING THE CENTRAL/SRN HIGH PLAINS LATE.

AS THIS TROUGH DIGS SWD...LOW-LEVEL WARM ADVECTION WILL BEGIN
INCREASING WITH TIME...AS WEAK CYCLOGENESIS OCCURS ACROSS TX THROUGH
THE END OF THE PERIOD.

...LOWER MS VALLEY AND VICINITY...
LARGE-SCALE SUBSIDENCE ASSOCIATED WITH WEAK SHORT-WAVE RIDGING IN
THE WAKE OF A DEPARTING SERN U.S. SHORT-WAVE TROUGH WILL COMBINE
WITH VERY WEAK LAPSE RATES/MEAGER INSTABILITY TO HINDER THUNDER
POTENTIAL TO A LARGE EXTENT -- ESPECIALLY EARLY IN THE PERIOD.

AS THE WRN SHORT-WAVE TROUGH DIGS SEWD HOWEVER...INCREASING
LOW-LEVEL WARM ADVECTION MAY SUPPORT SLIGHTLY MORE
WIDESPREAD/ELEVATED CONVECTION. HOWEVER...WITH WEAK INSTABILITY AND
ONLY MODEST FLOW ALOFT...SEVERE WEATHER IS NOT EXPECTED.

..GOSS.. 01/06/2012

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