SWOMCD
SPC MCD 252005
LAZ000-TXZ000-252100-
MESOSCALE DISCUSSION 0587
NWS STORM PREDICTION CENTER NORMAN OK
0305 PM CDT WED APR 25 2007
AREAS AFFECTED...SRN LA
CONCERNING...TORNADO WATCH 186...
VALID 252005Z - 252100Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 186 CONTINUES.
LATEST RADAR LOOPS INDICATE BROKEN CONVECTIVE LINE EXTENDS FROM
POE/LCH WITH THE SRN END JUST PASSING GALVESTON AS OF 20Z. THREAT
ACROSS EXTREME ERN TX SHOULD BE DIMINISHING SHORTLY.
HOWEVER...ENVIRONMENT ACROSS THE REMAINDER OF WW 186 REMAINS
FAVORABLE FOR SEVERE WEATHER...WITH THE MAIN THREAT FROM DAMAGING
WINDS/ISOLD TORNADOES. 18Z SOUNDING FROM LAKE CHARLES SUGGESTS
KINEMATIC PROFILE REMAINS SUPPORTIVE FOR EMBEDDED LEWPS/SUPERCELL
STRUCTURES. IN ADDITION...VWP DATA FROM THE LAKE CHARLES RADAR IS
VERY FAVORABLE FOR ROTATING UPDRAFTS WITH LOW LEVEL SHEAR FROM 20-25
KT AND DEEP LAYER SHEAR NEARLY 60 KT. UPSTREAM MEASURED WIND
OBSERVATIONS HAVE BEEN IN THE 30-35 KT RANGE...AND AREAS NEAR AND
JUST NORTH OF LAKE CHARLES WILL LIKELY GET STRONG TO SEVERE WIND
GUSTS WITH APPROACHING LINE SEGMENT OVER THE NEXT HOUR OR SO.
.TAYLOR.. 04/25/2007
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...JAN...LIX...LCH...HGX...
28079463 28709565 30159363 31019344 30989110 28059390
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