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Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 140333
SWOMCD
SPC MCD 140333
TNZ000-ARZ000-MSZ000-TXZ000-OKZ000-140430-

MESOSCALE DISCUSSION 0346
NWS STORM PREDICTION CENTER NORMAN OK
1033 PM CDT SUN APR 13 2014

AREAS AFFECTED...ARKLATEX INTO ECNTRL AR

CONCERNING...SEVERE THUNDERSTORM WATCH 77...

VALID 140333Z - 140430Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 77
CONTINUES.

SUMMARY...NEW WW MAY BE ISSUED TO MORE ACCURATELY REFLECT ONGOING
SEVERE THREAT.  ORGANIZED CONVECTIVE RISK EXTENDS PRIMARILY FROM
NERN TX INTO ECNTRL AR.

DISCUSSION...FRONTAL SQUALL LINE REMAINS FAIRLY ACTIVE ACROSS
CNTRL/SERN AR INTO RED RIVER REGION OF NERN TX.  THIS MCS IS
EXPECTED TO ADVANCE STEADILY EWD ACROSS THE REMAINDER OF WW77
EXITING ERN EDGES OF WATCH IN THE NEXT HOUR OR SO.  03Z SOUNDING
FROM LZK EXHIBITS SUFFICIENT INSTABILITY...ROUGHLY 1100 J/KG
SBCAPE...FOR ORGANIZED SQUALL LINE TO ADVANCE TOWARD THE MS DELTA
REGION OF ERN AR.  WITH 50KT FLOW ABOUT 1KM OFF THE SFC THERE IS
CONCERN THAT DAMAGING WINDS MAY ACCOMPANY STRONGER LINE SEGMENTS.
WHILE IT/S NOT CLEAR HOW FAR DOWNSTREAM THIS ORGANIZED SQUALL LINE
WILL REMAIN SEVERE...NEW WW MAY BE WARRANTED TO ACCOUNT FOR THIS
THREAT...AT LEAST TO NEAR THE MS RIVER.  SOUTH OF I-20 CONCENTRATION
OF TSTMS SHOULD REMAIN QUITE ISOLATED.

..DARROW.. 04/14/2014

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...MEG...JAN...LZK...SHV...TSA...OUN...

LAT...LON   33939609 35709527 35699205 35789200 35748922 33029142
            33029431 33949356 33939609

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