[MCD] SWOMCD

Fri Apr 14 03:33:11 UTC 2006

ACUS11 KWNS 140331
SWOMCD
SPC MCD 140331 
OHZ000-MIZ000-INZ000-WIZ000-ILZ000-IAZ000-140430-

MESOSCALE DISCUSSION 0494
NWS STORM PREDICTION CENTER NORMAN OK
1031 PM CDT THU APR 13 2006

AREAS AFFECTED...FAR ERN IA/CENTRAL-SRN WI/NRN IL/FAR NWRN IND

CONCERNING...SEVERE THUNDERSTORM WATCH 178...179...

VALID 140331Z - 140430Z

SEVERE STORMS EXPECTED TO CONTINUE ACROSS MAINLY SERN PART OF WW 178
AND MUCH OF WW 179.  NEW WW MAY BE NEEDED FOR SWRN LOWER MI AND
CENTRAL/NRN IND BY 04Z.

HP SUPERCELL CURRENTLY LOCATED OVER THE IL COUNTIES OF ROCK
ISLAND...MERCER AND HENRY SHOULD CONTINUE TO MOVE SEWD ALONG
MOISTURE/INSTABILITY AXIS WHICH EXTENDED SEWD INTO CENTRAL TO SERN
IL.  MEANWHILE...STRONGEST LEFT MOVING STORMS OVER NRN IL/SRN WI
HAVE MOVED N OF WARM FRONT SUGGESTING THREAT WITH THIS ACTIVITY
SHOULD BE HAIL AS THEY CONTINUE TO TRACK ENE AT 50-55 KT.

50 KT SSWLY LLJ EXTENDING FROM ERN MO INTO NRN IL/SRN WI WILL
CONTINUE TO PROVIDE INFLUX OF MODERATE INSTABILITY INTO ONGOING MCS
ACROSS FAR ERN IA/NRN IL/SRN WI.  LLJ IS EXPECTED TO VEER TO SWLY
AND TRANSLATE EWD EXTENDING INTO SRN LOWER MI OVERNIGHT.  THIS WILL
AID DESTABILIZATION FOR MCS TO CONTINUE TO SPREAD EWD WITH ATTENDANT
THREAT FOR SEVERE STORMS.

..PETERS.. 04/14/2006

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

ATTN...WFO...ILN...APX...IWX...GRR...IND...GRB...LOT...ILX...MKX...DVN...ARX...

44348669 43538471 41598477 39748486 39768887 40249019
40739065 41059115 41439137 42569140 43339124 44359065
45048999 45128960 44748719 

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