Severe Storm Outlook Narrative (AC)
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ACUS48 KWNS 240819
SWOD48
SPC AC 240817

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0317 AM CDT WED AUG 24 2016

VALID 271200Z - 011200Z

...DISCUSSION...
MODELS CONTINUE TO SHOW A COMPACT SHORTWAVE TROUGH MOVING FROM THE
NRN PLAINS INTO THE UPPER MS VALLEY ON SAT/D4 WITH A PERSISTENT
UPPER RIDGE OVER THE MID ATLANTIC. WHILE SOME THUNDERSTORM ACTIVITY
IS LIKELY AHEAD OF THIS SYSTEM ACROSS THE UPPER MS VALLEY/GREAT
LAKES ON D4 INTO D5...INSTABILITY DOES NOT APPEAR TO BE PARTICULARLY
STRONG. BEYOND D5...MODELS BEGIN TO DIVERGE WITH INDIVIDUAL
FEATURES...BUT IN GENERAL THE STRONGER FLOW ALOFT WILL LIFT NWD
TOWARD THE CANADIAN BORDER...WITH A DECREASING THREAT OF SEVERE
WEATHER...AND LITTLE INDICATION OF ANY SIGNIFICANT LARGE-SCALE
TROUGHS.

..JEWELL.. 08/24/2016



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