653  
ACUS11 KWNS 162343  
SWOMCD  
SPC MCD 162343  
OHZ000-MIZ000-INZ000-170115-  
 
MESOSCALE DISCUSSION 1695  
NWS STORM PREDICTION CENTER NORMAN OK  
0643 PM CDT WED JUL 16 2025  
 
AREAS AFFECTED...MICHIGAN...NORTHEASTERN INDIANA...NORTHWESTERN OHIO  
 
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY  
 
VALID 162343Z - 170115Z  
 
PROBABILITY OF WATCH ISSUANCE...20 PERCENT  
 
SUMMARY...A FEW INSTANCES OF STRONG TO SEVERE WIND MAY LINGER  
DOWNSTREAM OF WW520. OVERALL, THE THREAT IS LIKELY TO DIMINISH AND  
DOWNSTREAM WATCH ISSUANCE IS UNLIKELY.  
 
DISCUSSION...A LINE OF STORMS MOVING ACROSS NORTHERN INDIANA HAS  
SHOWN SIGNS OF WEAKENING OVER THE LAST HOUR. A COUPLE OF REPORTS  
AROUND 40-55 MPH WERE NOTED EARLIER. THE DOWNSTREAM AIR MASS REMAINS  
UNSTABLE BUT DEEP LAYER SHEAR IS OVERALL MARGINAL. CAM GUIDANCE  
GENERALLY SUGGESTS THIS LINE WILL CONTINUE TO WEAKEN WITH LOSS OF  
DAYTIME HEATING. A DOWNSTREAM WATCH IS UNLIKELY TO BE NEEDED.  
 
..THORNTON.. 07/16/2025  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...CLE...ILN...DTX...IWX...GRR...IND...  
 
LAT...LON 41668612 42088564 42238461 42098405 41728360 41428349  
40978379 40738393 40568402 40308470 40298527 40598590  
40688609 41668612  
 
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH  
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