[MCD] SWOMCD

Sun Mar 12 00:38:18 UTC 2006

ACUS11 KWNS 120039
SWOMCD
SPC MCD 120039 
ILZ000-MOZ000-120145-

MESOSCALE DISCUSSION 0243
NWS STORM PREDICTION CENTER NORMAN OK
0639 PM CST SAT MAR 11 2006

AREAS AFFECTED...NORTHERN/CENTRAL IL INTO EASTERN MO

CONCERNING...TORNADO WATCH 63...

VALID 120039Z - 120145Z

VALID PORTION OF TORNADO WATCH 63 CONTINUES UNTIL 04Z.

ACROSS THE SOUTHERN PORTION OF TORNADO WATCH 63...PRIMARY POTENTIAL
FOR AN ISOLATED TORNADO PERSISTS ROUGHLY FROM THE ST LOUIS METRO
AREA SOUTHWARD...WITH LARGE HAIL OTHERWISE THE PREDOMINANT HAZARD.
FURTHER NORTH...WELL DEVELOPED LINEAR MCS/BOWING SEGMENT HAS TAKEN
SHAPE ACROSS CENTRAL IL OVER THE PAST 45 MINUTES...JUST WEST OF THE 
THE SPRINGFIELD AREA AS OF 0030Z. ALTHOUGH THE BOUNDARY LAYER
STABILIZES WITH EASTWARD EXTENT...ADEQUATE LOW LEVEL
SHEAR/SUFFICIENT DRY AIR ABOVE THE BOUNDARY LAYER WILL FAVOR
ORGANIZED COLD POOL MAINTENENCE. AS SUCH...THREAT FOR DAMAGING WINDS
MAY INCREASE IN VICINITY OF SPRINGFIELD/LINCOLN/DECATUR IN THE SHORT
TERM AS MCS SPREADS EASTWARD. FURTHER NORTH...PRIMARY SEVERE THREAT
ACROSS NORTH CENTRAL INTO NORTHEAST IL APPEARS TO BE LARGE HAIL.

..GUYER.. 03/12/2006

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

ATTN...WFO...PAH...LOT...ILX...LSX...DVN...

41088992 41588914 41418775 40818778 39248839 37988953
37899019 38009115 38339129 39069104 39569035 40158999 

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