DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 300656
SWODY2
SPC AC 300654

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1254 AM CST FRI NOV 30 2012

VALID 011200Z - 021200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
WLY/ZONAL FLOW ALOFT IS FORECAST TO PREVAIL ACROSS THE U.S. THIS
PERIOD...THOUGH A SERIES OF UPPER DISTURBANCES WILL CONTINUE TO
SHIFT INLAND ACROSS THE NW AND THEN RACE RAPIDLY EWD WITHIN THE FAST
WLY FLOW FIELD.

WIDESPREAD/HEAVY PRECIPITATION WILL CONTINUE OVER THE PAC NW
VICINITY...THOUGH MINIMAL INSTABILITY SUGGESTS ONLY
SPORADIC/ISOLATED LIGHTNING STRIKES. WHILE A FEW STRIKES MAY OCCUR
INTO THE NRN INTERMOUNTAIN REGION DURING THE DAY...WILL MAINTAIN A
THUNDER LINE ONLY ACROSS WRN WA/WRN ORE/NWRN CA WHERE GREATER CHANCE
FOR 10% COVERAGE APPEARS TO EXIST.

ELSEWHERE...A WEAK/LOW-AMPLITUDE SHORT-WAVE TROUGH AT MID LEVELS
CROSSING THE MIDWEST INTO THE SECOND HALF OF THE PERIOD COULD
COMBINE WITH LOW-LEVEL MOISTENING/ASCENT TO SUPPORT ELEVATED SHOWERS
AND PERHAPS A FEW LIGHTNING STRIKES. HOWEVER...LOW CONFIDENCE THAT
COVERAGE WILL EXCEED 10% IN ANY PARTICULAR AREA PRECLUDES INCLUSION
OF ANY THUNDER LINES THIS FORECAST.

..GOSS.. 11/30/2012

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