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Severe Storm Outlook Narrative (AC)
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ACUS11 KWNS 220441
SWOMCD
SPC MCD 220441
ALZ000-MSZ000-LAZ000-220545-

MESOSCALE DISCUSSION 0767
NWS STORM PREDICTION CENTER NORMAN OK
1141 PM CDT TUE MAY 21 2013

AREAS AFFECTED...CNTRL LA / CNTRL AND N-CNTRL MS

CONCERNING...SEVERE THUNDERSTORM WATCH 209...

VALID 220441Z - 220545Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 209
CONTINUES.

SUMMARY...POCKETS OF STRONG TO MARGINALLY SEVERE WIND GUSTS WILL
LIKELY POSE AN ISOLATED WIND DAMAGE THREAT THE NEXT COUPLE OF HOURS
IN PLACES WHERE THE SQUALL LINE EXHIBITS A MORE EWD COMPONENT TO ITS
MOTION.

DISCUSSION...SUBJECTIVE MESOANALYSIS SHOWS AN ARCING GUST FRONT/COLD
POOL LOCATED OVER NERN MS WHERE TEMPS ARE AROUND 70 WITH LOWER 60S
DEWPOINTS.  SOUTH OF THIS BOUNDARY...TEMPS IN THE MID 70S AND
DEWPOINTS RANGING FROM THE MID 60S-70 DEG F CHARACTERIZE A MORE
UNSTABLE AIRMASS --- POTENTIALLY MORE CONDUCIVE FOR WIND GUSTS TO
REACH THE SURFACE.  THE QLCS IS ADVANCING TOWARDS THE KDGX RADAR AT
34 KT AND INBOUND VELOCITIES SHOW UPWARDS OF 40-50 KTS AT 1500 AGL.
ADDITIONALLY...KTVR OBSERVED A 40 KT WIND GUST DURING THE PAST HOUR.
 IN SUMMARY...THE REGION SOUTH OF THE OUTFLOW BOUNDARY FROM N-CNTRL
MS INTO SWRN MS --WHERE THE GREATEST EWD COMPONENT TO THE QLCS
MOTION IS LOCATED-- WILL REMAIN THE FAVORED AREA FOR POCKETS OF
35-50 KT WIND GUSTS CAPABLE OF ISOLATED WIND DAMAGE.

..SMITH.. 05/22/2013

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

ATTN...WFO...BMX...MEG...JAN...LIX...

LAT...LON   33708831 33728940 32039099 31579177 31279106 31498969
            32558874 33298813 33708831

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