[MCD] SWOMCD

[Mesoscale Convective Discussions]

ACUS11 KWNS 311656
SWOMCD
SPC MCD 311655 
TXZ000-311800-

MESOSCALE DISCUSSION 2367
NWS STORM PREDICTION CENTER NORMAN OK
1055 AM CST MON OCT 31 2005

AREAS AFFECTED...CENTRAL AND PORTIONS OF EASTERN TX

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 311655Z - 311800Z

SEVERE THUNDERSTORMS WILL CONTINUE TO SLOWLY INCREASE IN COVERAGE
OVER CENTRAL TX DURING THE NEXT FEW HOURS AS STORMS ROOT INTO A
DESTABILIZING BOUNDARY LAYER.  THREAT WILL THEN SPREAD EWD INTO
PORTIONS OF ERN TX THROUGH THE EARLY EVENING.  WW WILL LIKELY BE
REQUIRED SOON.

STORMS ALONG SRN END OF EXTENSIVE SQUALL LINE ARE BEGINNING TO
INTERACT WITH MODERATE INSTABILITY DEVELOPING INTO CENTRAL TX LATE
THIS MORNING.  WITH CONTINUED HEATING AND INFLUX OF MID 60F SURFACE
DEW POINTS...EXPECT FURTHER DESTABILIZATION TO OCCUR.  12Z SOUNDINGS
AND RUC FORECAST SOUNDINGS INDICATE SUBSIDENCE/CAP LAYER AROUND 800
MB WHICH WILL BE OVERCOME BY VERTICAL MOTION/COOLING NEAR 18Z. DEEP
LAYER SHEAR WILL INCREASE AHEAD OF APPROACHING SURFACE COLD
FRONT/OUTFLOW BOUNDARY WITH DEEP LAYER SHEAR FROM 35-45 KT.  THUS...
ORGANIZED LINES/BOW ECHOES AND A FEW SUPERCELLS CAN BE EXPECTED.

..EVANS.. 10/31/2005

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

ATTN...WFO...SHV...HGX...FWD...EWX...

29229679 28979784 29259838 29979859 30979824 32099679
32329555 31749494 30769495 29939566 

WWWW