[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 251812
SWOMCD
SPC MCD 251811 
OKZ000-TXZ000-251915-

MESOSCALE DISCUSSION 0682
NWS STORM PREDICTION CENTER NORMAN OK
0111 PM CDT MON APR 25 2005

AREAS AFFECTED...PORTIONS OF CENTRAL AND SRN OK

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 251811Z - 251915Z

WW MAY BE REQUIRED FOR PORTIONS OF CENTRAL/SRN OK.

VIS IMAGERY SHOWED CU FIELD DEVELOPING ALONG/EAST OF DRY LINE WHICH
EXTENDED FROM WRN OK SWD TO NEAR SPS AND THEN SWWD TO JUST EAST OF
SJT.  SLY LOW LEVEL WINDS IN THE WARM SECTOR WILL CONTINUE TO ADVECT
MOISTURE NWD...WHILE ADDITIONAL SURFACE HEATING IS EXPECTED TO
FURTHER WEAKEN THE CAP ACROSS THIS REGION...RESULTING IN
THUNDERSTORM INITIATION.  COLD MID LEVEL TEMPERATURES /-20 C AT 500
MB/ ATOP THIS DESTABILIZING BOUNDARY LAYER WILL FURTHER ENHANCE
INSTABILITY WITH MUCAPE VALUES UP TO 1500 J/KG.  STEEP LAPSE RATES
OF 7.5-8 C/KM AND STRONG DEEP LAYER SHEAR WILL FAVOR SEVERE
HAIL...WITH DAMAGING WINDS ALSO A THREAT.

..PETERS.. 04/25/2005

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

ATTN...WFO...TSA...FWD...OUN...

36969647 35029585 33999580 33939773 34059843 35719872
36919914 

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