[MCD] SWOMCD

Thu Jul 20 08:21:37 UTC 2006

ACUS11 KWNS 200820
SWOMCD
SPC MCD 200819 
OHZ000-MIZ000-INZ000-ILZ000-WIZ000-200915-

MESOSCALE DISCUSSION 1578
NWS STORM PREDICTION CENTER NORMAN OK
0319 AM CDT THU JUL 20 2006

AREAS AFFECTED...SWRN LOWER MI AND NRN IND

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 200819Z - 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...ILN...IWX...GRR...IND...LOT...MKX...

40748743 43638792 43558505 40688465 

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