[MCD] SWOMCD

Mon Mar 13 01:14:29 UTC 2006

ACUS11 KWNS 130115
SWOMCD
SPC MCD 130115 
INZ000-ILZ000-WIZ000-IAZ000-130245-

MESOSCALE DISCUSSION 0268
NWS STORM PREDICTION CENTER NORMAN OK
0715 PM CST SUN MAR 12 2006

AREAS AFFECTED...EASTERN IA/NORTHERN IL/NORTHWEST INDIANA/SOUTHERN
WI

CONCERNING...TORNADO WATCH 75...

VALID 130115Z - 130245Z

TORNADO WATCH 75 CONTINUES UNTIL 06Z...WITH A MORE WIDESPREAD SEVERE
THREAT EXPECTED TO EVOLVE OVER THE NEXT SEVERAL HOURS ACROSS EASTERN
IA/NORTHERN IL INTO SOUTHERN WI/NORTHWEST INDIANA. 

A SEVERE THUNDERSTORM WATCH WILL LIKELY BE ISSUED SOON FROM SOUTH
CENTRAL IA INTO FAR NORTHERN IL/SOUTHERN WI.

AIRMASS ACROSS THE REGION CONTINUES TO QUICKLY DESTABILIZE NORTH OF
DOUBLE SURFACE WARM FRONT/BAROCLINIC ZONES FROM MO INTO
CENTRAL/NORTH CENTRAL IL. THIS DESTABILIZATION TREND IS WELL SAMPLED
BY 00Z RAOBS FROM DAVENPORT IA/LINCOLN IL...WITH VERY STRONG
VERTICAL SHEAR ALREADY IN PLACE. THIS SCENARIO WILL BE FURTHER AIDED
REMAINDER OF THE EVENING BY TENDENCY FOR BAROCLINIC ZONE TO SHIFT
NORTH ACROSS MO/IL AHEAD OF APPROACHING/DEEPENING SURFACE LOW AND
INCREASINGLY STRONG LOW LEVEL JET. IN ADDITION TO THE POSSIBILITY
FOR LAGE HAIL ACROSS WW 75...A STEADILY INCREASING THREAT FOR
TORNADOES AND DAMAGING WINDS IS EXPECTED OVER THE NEXT SEVERAL
HOURS...ESPECIALLY FROM SOUTHEAST IA ACROSS NORTHWEST/NORTH CENTRAL
IL. PRIMARY THREAT ACROSS NORTHEAST IA/SOUTHERN WI WILL BE LARGE
HAIL.

..GUYER.. 03/13/2006

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

ATTN...WFO...LOT...ILX...MKX...DVN...ARX...DMX...

42479194 43289008 42938836 41218739 40658818 40558953
40639096 40909268 41559285 

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