[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 122307
SWOMCD
SPC MCD 122307 
OKZ000-TXZ000-130000-

MESOSCALE DISCUSSION 0846
NWS STORM PREDICTION CENTER NORMAN OK
0607 PM CDT THU MAY 12 2005

AREAS AFFECTED...TX S PLAINS...SRN PNHDL INTO SWRN OK

CONCERNING...TORNADO WATCH 260...

VALID 122307Z - 130000Z

THROUGH 00Z...GREATEST POTENTIAL FOR ISOLATED TORNADOES WILL EXIST
FROM JUST NE OF PVW TO W OR NW OF CDS.

AS OF 2245Z...LBB VOLUMETRIC RADAR DATA AND SPOTTER REPORTS
INDICATED A TORNADIC SUPERCELL JUST E OF PVW MOVING E AT 15-20 KTS.
THIS STORM APPEARS TO BE NEARLY COINCIDENT WITH SURFACE BOUNDARY
WHICH EXTENDS SWWD INTO CNTRL HALE COUNTY...AND THEN NEWD THROUGH
NRN FLOYD...SERN BRISCOE AND INTO NWRN HALL COUNTY. MODIFICATION OF
CURRENT LBB VWP FOR W TX MESONET SURFACE OBSERVATIONS WITHIN
IMMEDIATE INFLOW REGION OF STORM INDICATES RELATIVELY STRONG
LOW-LEVEL SHEAR WITH 0-1 KM SRH OF 150-200 M2/S2.

THROUGH 00Z...IT APPEARS GREATEST POTENTIAL FOR ISOLATED TORNADOES
WILL EXIST WITH THIS STORM AS IT MOVES SLOWLY EWD OR NEWD ALONG
BOUNDARY ACROSS NRN FLOYD/SRN BRISCOE...INTO NRN MOTLEY/SRN HALL
COUNTIES.

ADDITIONAL STORM FARTHER TO THE S OVER LYNN COUNTY HAS INITIATED ON
N-S BOUNDARY EXTENDING FROM INTERSECTION WITH AFOREMENTIONED
BOUNDARY OVER SRN HALE COUNTY SWD INTO WRN LYNN COUNTY. THOUGH THIS
STORM WILL ALSO REMAIN CAPABLE OF ISOLATED TORNADOES...COMPARATIVELY
WEAKER LOW AND DEEP-LAYER SHEAR /PER JAYTON PROFILER AND RUC
ANALYSIS FIELDS/ SUGGEST THAT VERY LARGE HAIL WILL BE THE PRIMARY
SEVERE WEATHER THREAT WITH THIS STORM.

..MEAD.. 05/12/2005

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

ATTN...WFO...OUN...LUB...AMA...MAF...

34450296 35539938 33939939 32870294 

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