[MCD] SWOMCD

Mon Nov 28 02:12:07 UTC 2005

ACUS11 KWNS 280209
SWOMCD
SPC MCD 280209 
ILZ000-MOZ000-280415-

MESOSCALE DISCUSSION 2483
NWS STORM PREDICTION CENTER NORMAN OK
0809 PM CST SUN NOV 27 2005

AREAS AFFECTED...ERN MO THROUGH EXTREME WRN IL

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 280209Z - 280415Z

ERN MO THROUGH WRN IL IS BEING MONITORED FOR A POSSIBLE WW.

STORMS CONTINUE FROM E CNTRL MO SWD INTO SERN MO. STRONGEST STORMS
ARE CURRENTLY IN SHANNON AND TEXAS COUNTIES MOVING NEWD AT 30 KT.
THIS ACTIVITY MAY BEGIN TO SHIFT E OF WW 877 AFTER 03Z. INSTABILITY
IS CURRENTLY LIMITED OVER ERN MO INTO WRN IL. HOWEVER...A 70+ KT LOW
LEVEL JET WILL CONTINUE TO SHIFT NEWD THROUGH THE MID MS VALLEY
OVERNIGHT AND CONTRIBUTE TO MARGINAL INSTABILITY. FORECAST RUC
SOUNDINGS SUGGEST MOST OF THIS INSTABILITY WILL BE ROOTED ABOVE THE
SURFACE. STORMS WILL LIKELY CONTINUE DEVELOPING AND SPREADING EWD AS
FORCING WITHIN EXIT REGION OF CYCLONICALLY CURVED UPPER JET SPREADS
THROUGH THE MID MS VALLEY. INSTABILITY WILL REMAIN MARGINAL AND
COULD SERVE AS A LIMITING FACTOR. HOWEVER...VERY STRONG VERTICAL
SHEAR AND STRONG FORCING MAY CONTINUE TO SUPPORT A THREAT OF SEVERE
STORMS AS THE ATMOSPHERE TRIES TO DESTABILIZE EWD OVERNIGHT.

..DIAL.. 11/28/2005

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

ATTN...WFO...ILX...LSX...

37968986 37449100 39259198 40179220 40149093 38708974 

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