[MCD] SWOMCD

Sat May 6 11:49:42 UTC 2006

ACUS11 KWNS 061148
SWOMCD
SPC MCD 061148 
LAZ000-TXZ000-061245-

MESOSCALE DISCUSSION 0773
NWS STORM PREDICTION CENTER NORMAN OK
0648 AM CDT SAT MAY 06 2006

AREAS AFFECTED...SERN TX...SWRN LA

CONCERNING...TORNADO WATCH 299...

VALID 061148Z - 061245Z

...SQUALL LINE WILL PROGRESS ACROSS SERN TX INTO SWRN LA OVER THE
NEXT FEW HOURS.  WW IS NOT ANTICIPATED AT THIS TIME...

LIMITED INSTABILITY DOWNSTREAM FROM ADVANCING MCS WILL PROVE
DETRIMENTAL TO UPDRAFT INTENSITY...ESPECIALLY ACROSS PORTIONS OF LA
WHERE MUCAPE IS GENERALLY AOB 1000J/KG.  BROKEN SQUALL LINE HAS
RECENTLY PRODUCED SEVERE WIND GUSTS IN THE GREATER HOUSTON
AREA...HOWEVER THESE HIGH WINDS WERE ASSOCIATED WITH STRONGEST
CONVECTIVE SURGE THAT SHOULD MOVE OFF THE UPPER TX COAST WITHIN THE
HOUR.  EWD PUSH INTO LA WILL BE MUCH WEAKER...AND GIVEN INSTABILITY
TRENDS THERE IS NO REASON TO BELIEVE SQUALL LINE WILL MAINTAIN
SEVERE INTENSITY...OR DEVELOP DAMAGING WINDS PRIOR TO BOUNDARY LAYER
HEATING LATER THIS MORNING.  AT THIS TIME DO NOT ANTICIPATE ISSUING
A WATCH FOR THIS ACTIVITY.

..DARROW.. 05/06/2006

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

ATTN...WFO...LCH...SHV...HGX...

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