Thursday, March 6, 2008

MESO: Mesoscale Discussion 0361

ACUS11 KWNS 062000
SWOMCD
SPC MCD 062000
TXZ000-062130-

MESOSCALE DISCUSSION 0361
NWS STORM PREDICTION CENTER NORMAN OK
0200 PM CST THU MAR 06 2008

AREAS AFFECTED...TX COASTAL PLAIN

CONCERNING...SEVERE THUNDERSTORM WATCH 103...

VALID 062000Z - 062130Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 103
CONTINUES.

AN ISOLATED TORNADO THREAT AND HAIL POTENTIAL WILL CONTINUE ACROSS
WW 103 OVER THE NEXT FEW HOURS. NEW WW ISSUANCE IS NOT ANTICIPATED
ATTM.

LATEST SFC ANALYSIS SHOWS A SHALLOW COLD FRONT ADVANCING SLOWLY SWD
ACROSS THE TX COASTAL PLAIN. INSTABILITY HAS CONTINUED TO INCREASE
EARLY THIS AFTERNOON ALONG THE SOUTHEASTERN EDGE OF THE BOUNDARY AND
SBCAPE VALUES NOW RANGE FROM 1000 TO 1500 J/KG FROM THE HOUSTON AREA
SWWD ACROSS MOST OF THE TX COASTAL PLAIN. A LINE OF STRONG
THUNDERSTORMS LOCATED ALONG THE COLD FRONT NEAR VICTORIA WILL
CONTINUE TO MOVE EWD AND SHOULD POSE A SEVERE THREAT INTO THE
IMMEDIATE COASTAL AREAS LATE THIS AFTERNOON. STEEP MID-LEVEL LAPSE
RATES AND COLD AIR ALOFT WILL SUPPORT HAIL WITH THE STRONGER CORES.
LOW-LEVEL SHEAR ON WSR-88D VWPS SHOULD ALSO BE STRONG ENOUGH FOR AN
ISOLATED TORNADO THREAT WITH ROTATING STORMS. THE GREATEST TORNADO
THREAT APPEARS TO BE NEAR CORPUS CHRISTI WHERE MOISTURE EXISTS
THROUGH A DEEPER LAYER AND STORMS ARE MORE DISCRETE IN NATURE.

.BROYLES.. 03/06/2008

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

ATTN...WFO...HGX...CRP...EWX...BRO...

27209705 27279781 27249856 27349855 27359883 28639878
28609833 28749811 28869817 29219768 29129762 29379721
29599721 29609687 29959652 30049662 30099618 30219616
30219580 30099581 30159554 30039524 30139510 29749493
29659503 29409496 29589446 28999528 28639515 27929642
27709672

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