[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 140059
SWOMCD
SPC MCD 140058 
TXZ000-OKZ000-140300-

MESOSCALE DISCUSSION 1339
NWS STORM PREDICTION CENTER NORMAN OK
0758 PM CDT MON JUN 13 2005

AREAS AFFECTED...S CNTRL OK INTO NORTHERN TX

CONCERNING...SEVERE THUNDERSTORM WATCH 477...

VALID 140058Z - 140300Z

CONTINUE REMAINING VALID PORTION OF WW TIL EXPIRATION. NEED FOR
ADDITIONAL WW THIS EVENING IS NOT ANTICIPATED.

CONVECTIVE OUTFLOW ENHANCED SURFACE BOUNDARY WILL CONTINUE TO SLOWLY
ADVANCE SOUTHWARD AND PROVIDE FOCUS FOR THUNDERSTORMS ACROSS THE RED
RIVER VALLEY NEXT FEW HOURS.  ACTIVITY IS BEGINNING TO SHIFT SOUTH
OF SOUTHERN FRINGE OF STRONGER CYCLONIC MID-LEVEL FLOW.  COUPLED
WITH ONSET OF SURFACE COOLING/INCREASING INHIBITION FOR PARCELS
BASED IN BOUNDARY LAYER...AND BAND OF FORCING ASSOCIATED WITH UPPER
TROUGH LIFTING AWAY FROM THE RED RIVER VALLEY...SEVERE THREAT IS
EXPECTED TO BEGIN DIMINISHING BY 02-03Z.  STORMS MAY BE SLOWEST TO
DIMINISH NEAR/SOUTH OF WICHITA FALLS...WHERE THERMAL SURFACE LOW IS
ENHANCING LOW-LEVEL CONVERGENCE.

..KERR.. 06/14/2005

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

ATTN...WFO...SHV...TSA...FWD...OUN...SJT...

34009896 34349792 34569671 34829621 35259564 34669506
33909527 33739667 33439798 33259903 33799931