[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 292329
SWOMCD
SPC MCD 292329 
ALZ000-TNZ000-MSZ000-ARZ000-LAZ000-TXZ000-300100-

MESOSCALE DISCUSSION 0712
NWS STORM PREDICTION CENTER NORMAN OK
0629 PM CDT FRI APR 29 2005

AREAS AFFECTED...EXTREME NERN TX / SRN AR / NRN LA / NRN MS

CONCERNING...TORNADO WATCH 211...

VALID 292329Z - 300100Z

CONVECTION IS ONGOING ACROSS WRN PORTIONS OF WW...BUT STORMS REMAIN
SUB-SEVERE ATTM.  HOWEVER...SEVERE / TORNADO THREAT CONTINUES --
PARTICULARLY ACROSS CENTRAL AND ERN PORTIONS OF WW.

DESPITE DEWP0INTS IN THE UPPER 60S...PERSISTENT SW-NE CLOUD BAND
AHEAD OF COLD FRONT FROM ERN TX / NWRN LA NEWD ACROSS CENTRAL AR HAS
HINDERED BOUNDARY-LAYER DESTABILIZATION.  THOUGH STORMS ARE ONGOING
ALONG FRONT AS WELL AS WITHIN THIS CLOUD BAND...CONVECTION HAS
REMAINED FAIRLY WEAK AND SLIGHTLY ELEVATED -- PRESUMABLY DUE TO THIS
LACK OF BOUNDARY-LAYER DESTABILIZATION ALONG WITH LARGE-SCALE UPPER
RIDGING.

NONETHELESS...DEEP-LAYER WIND FIELD REMAINS FAVORABLE FOR ORGANIZED
/ SUPERCELL STORMS ACROSS WARM SECTOR. AS COLD FRONT AND ASSOCIATED
PRE-FRONTAL CONVECTION MOVES EWD INTO MS / NERN LA WHERE GREATER
BOUNDARY LAYER HEATING / DESTABILIZATION HAS OCCURRED...SEVERE /
TORNADO THREAT SHOULD INCREASE.

..GOSS.. 04/29/2005

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

ATTN...WFO...BMX...MEG...JAN...LZK...LCH...SHV...

32849439 34259360 35048831 33188813 31049449 

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