[MCD] SWOMCD

Fri Apr 28 15:24:10 UTC 2006

ACUS11 KWNS 281524
SWOMCD
SPC MCD 281523 
OKZ000-TXZ000-281700-

MESOSCALE DISCUSSION 0676
NWS STORM PREDICTION CENTER NORMAN OK
1023 AM CDT FRI APR 28 2006

AREAS AFFECTED...ERN TX PNHDL...WRN OK

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 281523Z - 281700Z

TRENDS ARE BEING MONITORED FOR INCREASING SEVERE THREAT AND
POSSIBILITY OF A WW.

NEW CONVECTIVE DEVELOPMENT IS EXPECTED ACROSS THE EASTERN TEXAS
PANHANDLE AND PARTS OF WESTERN OKLAHOMA THROUGH THE 17-19Z TIME
FRAME. THIS SEEMS LIKELY TO OCCUR IN ASSOCIATION WITH STRONGER
MID-LEVEL COOLING/ASCENT IN EXIT REGION OF 70+ KT CYCLONIC 500 MB
JET STREAK...WHICH CONTINUES TO SLOWLY NOSE INTO SOUTHWEST TEXAS. 
MID-LEVEL LAPSE RATES ARE ALREADY RATHER STEEP AND...WITH FURTHER
DESTABILIZATION...MOST UNSTABLE CAPE FOR MOIST PARCELS ABOVE
LINGERING NEAR SURFACE INVERSION LAYER MAY APPROACH 2000 J/KG. 
SHEAR PROFILES IN CLOUD BEARING LAYER APPEAR SUPPORTIVE OF MID-
LEVEL UPDRAFT ROTATION...WHICH SHOULD ENHANCE POTENTIAL FOR LARGE
HAIL IN STRONGER STORMS.

..KERR.. 04/28/2006

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

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

35740108 36420043 36519957 35549887 33849909 33300064
34400082 35090117 

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