Severe Storm Outlook Narrative (AC)
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ACUS48 KWNS 220858
SWOD48
SPC AC 220857

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0257 AM CST SAT NOV 22 2014

VALID 251200Z - 301200Z

...DISCUSSION...
A LONGWAVE TROUGH TO THE E OF THE ROCKIES ON TUESDAY /D4/ WILL
SLOWLY MOVE EWD AND CONTINUE TO INFLUENCE THE ERN SEABOARD THROUGH
THURSDAY /D6/ BEFORE THE PATTERN BECOMES LESS AMPLIFIED AND MORE
PROGRESSIVE TOWARDS THE END OF THE EXTENDED PERIOD.  A
LOWER-LATITUDE DISTURBANCE WITHIN THE BASE OF THE LARGER-SCALE
TROUGH IS FORECAST TO MOVE ACROSS PARTS OF THE GULF OF MEXICO ON
TUESDAY.  SOME RISK FOR STRONGER STORMS MAY EXIST S OF A FRONTAL
ZONE DRAPED OVER THE FL PENINSULA ON TUESDAY BUT THE LIMITED
MAGNITUDE OF THIS FORECAST THREAT PRECLUDES A 30 PERCENT PROBABILITY
AREA.  AN EXPANSIVE AREA OF SURFACE HIGH PRESSURE WITH COOL/STABLE
CONDITIONS WILL PRECLUDE THUNDERSTORM DEVELOPMENT ACROSS THE CNTRL
STATES AND NRN GULF BASIN DURING MUCH OF THE PERIOD.

..SMITH.. 11/22/2014


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