ACUS48 KWNS 030910
SWOD48
SPC AC 030909
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0309 AM CST TUE DEC 03 2013
VALID 061200Z - 111200Z
...DISCUSSION...
LOW SEVERE POTENTIAL ON D3 MAY LINGER INTO D4 ALONG A POLAR COLD
FRONT MOVING SEWD ACROSS THE DEEP SOUTH AND CNTRL GULF COAST. BEYOND
THIS TIME FRAME...PREDICTABILITY WANES AND BECOMES VERY LOW TOWARDS
THE END OF THE PERIOD WITH THE EVOLUTION OF THE PERSISTENT LONGWAVE
TROUGH FROM CNTRL CANADA TO THE SOUTHWEST. CONSENSUS OF GUIDANCE
SUGGESTS THAT A RELATIVELY VIGOROUS SHORTWAVE IMPULSE MAY EJECT EWD
INTO THE CNTRL STATES LATE IN THE PERIOD. THIS MIGHT EVENTUALLY
YIELD LOW SEVERE PROBABILITIES FOR PARTS OF THE CNTRL GULF
COAST/SOUTHEAST AS THE POLAR FRONT RETREATS FOR A TIME BEFORE BEING
SHUNTED E ONCE AGAIN.
..GRAMS.. 12/03/2013
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