[MCD] SWOMCD

Fri Apr 21 11:41:40 UTC 2006

ACUS11 KWNS 211139
SWOMCD
SPC MCD 211138 
LAZ000-TXZ000-211345-

MESOSCALE DISCUSSION 0601
NWS STORM PREDICTION CENTER NORMAN OK
0638 AM CDT FRI APR 21 2006

AREAS AFFECTED...PORTIONS SE TX...EXTREME SWRN LA

CONCERNING...SEVERE THUNDERSTORM WATCH 231...

VALID 211138Z - 211345Z

ORGANIZED MCS/BOW WITH SMALLER EMBEDDED LEWP FEATURES WILL CONTINUE
MOVING ESEWD ACROSS MID/UPPER TX COASTAL PLAIN. TSTMS SHOULD MOVE
OFFSHORE ARANSAS/CALHOUN/MATAGORDA/BRAZORIA/GALVESTON COUNTIES
BETWEEN 12Z-13Z...AND OFFSHORE CHAMBERS COUNTY BY ABOUT 14Z.  MRGLLY
SEVERE HAIL AND 50-52 KT GUSTS HAVE BEEN REPORTED WITH THIS ACTIVITY
IN THE PAST 1-2 HOURS. POTENTIAL FOR DAMAGING GUSTS AND OCCASIONAL
HAIL REMAINS WITH THIS MCS AS IT MOVES THROUGH FAVORABLY MOIST AIR
MASS ALONG AND S OF QUASISTATIONARY BAROCLINIC ZONE...ANALYZED AT
11Z FROM NRN PORTIONS HOU METRO AREA NEWD PAST POE.  CONVECTION WILL
BE SUPPORTED BY SFC DEW POINTS LOW 70S F IN INFLOW LAYER...WITH
SBCAPES 1500-2500 J/KG S OF BOUNDARY...AND STRONGLY FORCED ASCENT TO
LFC ALONG LEADING PORTION OF OUTFLOW SLAB.  KINEMATIC PROFILES
REMAIN FAVORABLE WITH 100-200 J/KG OF 0-1 KM SRH...40-50 KT 0-6 KM
SHEAR. NRN PORTION OF THIS COMPLEX MAY AFFECT PORTIONS
HARDIN/JEFFERSON/ORANGE COUNTIES JUST E OF WW...AS WELL AS CAMERON
PARISH.

..EDWARDS.. 04/21/2006

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

ATTN...WFO...LCH...HGX...CRP...

28829684 28769632 28989588 29339562 29709540 29979540
30269555 30369531 30119436 30019358 29759318 29449329
29179444 28299596 28279666 

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