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ACUS11 KWNS 220222
SWOMCD
SPC MCD 220222
ALZ000-MSZ000-220245-

MESOSCALE DISCUSSION 0765
NWS STORM PREDICTION CENTER NORMAN OK
0922 PM CDT TUE MAY 21 2013

AREAS AFFECTED...NERN MS / FAR NWRN AL

CONCERNING...TORNADO WATCH 207...

VALID 220222Z - 220245Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 207 CONTINUES.

SUMMARY...A MARGINAL WIND DAMAGE THREAT MAY PERSIST BEYOND 03Z.  A
NEW SEVERE THUNDERSTORM WATCH ISSUANCE IS UNLIKELY /ONLY 20 PERCENT/
DOWNSTREAM ACROSS NRN AL.

DISCUSSION...RADAR MOSAIC SHOWS A SURGING GUST FRONT BECOMING
INCREASINGLY DISPLACED FROM THE WEAKENING QLCS NEAR THE TN/AL/MS
BORDER WITH THIS BOUNDARY ARCING SWWD TO A MORE VIGOROUS UPDRAFT
LOCATED OVER YALOBUSHA COUNTY MS.  THE SRN FLANKING STORMS
EXHIBITING CELLULAR CHARACTERISTICS MAY POSE A LOCALIZED STRONG WIND
GUST THREAT OVER THE NEXT HOUR OR SO...AND A LOCAL WATCH
EXTENSION-IN-TIME IS A POSSIBLE OPTION OVER PARTS OF NERN MS.
FARTHER N...THE ANAFRONTAL CHARACTER OF THE QLCS WILL ACT TO FURTHER
WEAKEN THE CONVECTIVE LINE WITH A GREATLY DIMINISHED WIND GUST
THREAT FARTHER N TOWARDS THE TN BORDER.

..SMITH/CORFIDI.. 05/22/2013

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

ATTN...WFO...BMX...HUN...MEG...JAN...

LAT...LON   34908812 34428937 33758999 33718872 34038772 34628758
            34908812

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