DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 120851
SWOD48
SPC AC 120850

DAY 4-8 CONVECTIVE OUTLOOK CORR 1
NWS STORM PREDICTION CENTER NORMAN OK
0350 AM CDT FRI APR 12 2013

VALID 151200Z - 201200Z

CORRECTED FOR SEVERE THREAT DAYS 5 AND 6

...DISCUSSION...
LOW LEVEL TRAJECTORIES WILL BECOME MORE FAVORABLE EARLY NEXT WEEK
FOR MOISTURE TO ADVANCE NWD ACROSS THE WRN GULF BASIN INTO THE SRN
PLAINS AS UPPER TROUGHING SETTLES OVER THE WRN U.S. ONE SIGNIFICANT
LEAD SHORTWAVE TROUGH WILL FORCE A SFC FRONT INTO OK MONDAY AND DEEP
CONVECTION MAY DEVELOP. HOWEVER...IN THE ABSENCE OF LARGE SCALE
FORCING THIS ACTIVITY SHOULD REMAIN ISOLATED. OF POTENTIALLY MORE
SIGNIFICANCE WILL BE THE CONTINUED MOISTENING THAT SHOULD LEAD TO
MORE ROBUST ORGANIZED SEVERE TSTMS TUESDAY. LATEST MODEL GUIDANCE
SUGGEST SCATTERED SEVERE STORMS SHOULD EVOLVE NEAR A DRYLINE/FRONTAL
INTERSECTION WITHIN BROAD STRONG SWLY FLOW ALOFT. PROGRESSION OF
UPPER TROUGH INTO THE HIGH PLAINS WEDNESDAY SUPPORTS AN EWD SHIFT OF
STRONG/SEVERE THUNDERSTORMS DURING THE DAY5 PERIOD FROM PORTIONS OF
MO INTO NERN TX.

..DARROW.. 04/12/2013

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