Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS48 KWNS 160851
SWOD48
SPC AC 160851

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0351 AM CDT WED APR 16 2014

VALID 191200Z - 241200Z

...DISCUSSION...
MARGINAL SEVERE POTENTIAL LATE D3/FRI MAY EXTEND INTO EARLY D4/SAT
ACROSS THE FL PENINSULA IN ASSOCIATION WITH A COMPACT SHORTWAVE
TROUGH THAT SHOULD GRADUALLY PUSH OFF THE S ATLANTIC COAST. A
MARGINAL SEVERE RISK IS EVIDENT ON D5/SUN OVER THE SRN PLAINS WITH A
LOW-AMPLITUDE SHORTWAVE TROUGH EJECTING FROM THE SOUTHWEST. THE
HIGHEST SEVERE POTENTIAL APPEARS TO BE CENTERED AROUND D8/WED OVER
THE GREAT PLAINS AS AN AMPLIFIED UPPER-LEVEL TROUGH PROGRESSES
THROUGH THE WEST. ALTHOUGH GUIDANCE IS QUITE CONSISTENT IN DEPICTING
A TROUGH...LARGE SPATIOTEMPORAL SPREAD WITH ITS EVOLUTION EXISTS
/TYPICAL OF THIS TIME FRAME/. INSTABILITY AHEAD OF THIS FEATURE
SHOULD BE RELATIVELY CONFINED IN A N-S CORRIDOR GIVEN ANTECEDENT CP
AIR MASS INTRUSION INTO THE GULF AS WELL AS MULTIPLE SRN STREAM
SHORTWAVE TROUGHS CROSSING THE NERN GULF.

..GRAMS.. 04/16/2014



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