[MCD] SWOMCD

[Mesoscale Convective Discussions]

ACUS11 KWNS 200817
SWOMCD
SPC MCD 200816 
OHZ000-MIZ000-INZ000-ILZ000-200915-

MESOSCALE DISCUSSION 1578
NWS STORM PREDICTION CENTER NORMAN OK
0316 AM CDT THU JUL 20 2006

AREAS AFFECTED...SWRN LOWER MI AND NRN IND

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 200816Z - 200915Z

...SEVERE THUNDERSTORM WATCH WILL LIKELY BE NEEDED SHORTLY FOR
PORTIONS OF SWRN LOWER MI AND NRN IN.

BOW ECHO HAS BECOME WELL ESTABLISHED OVER SRN WI/EXTREME NRN IL AND
IS MOVING ESEWD AT 40-45 KT. BOW HEAD WAS LOCATED OVER DODGE
COUNTY...WI AND VAD WIND PROFILES/PROFILERS INDICATE WELL DEVELOPED
INFLOW JET HAD DEVELOPED WITH THE SYSTEM. A 30-40 KT LOW LEVEL JET
AND MODERATE INSTABILITY SHOULD MAINTAIN BOW ECHO AND WIND DAMAGE
THREAT ESEWD THROUGH THE MORNING. CURRENT MOTION WOULD PLACE BOW
ECHO INTO SWRN LOWER MI AROUND 10Z AND NWRN INDIANA BY 11Z...AND IF
THIS MOTION CONTINUES...WW ISSUANCE LIKELY WILL BE NEEDED BY 09Z.

..IMY.. 07/20/2006

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

ATTN...WFO...IWX...GRR...IND...LOT...

41128755 43018773 43698768 43708522 42388477 42368475
40828477 40658654 

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