136  
ACUS11 KWNS 172222  
SWOMCD  
SPC MCD 172222  
MIZ000-172315-  
 
MESOSCALE DISCUSSION 0759  
NWS STORM PREDICTION CENTER NORMAN OK  
0522 PM CDT SUN MAY 17 2026  
 
AREAS AFFECTED...PORTIONS OF CENTRAL LOWER MICHIGAN  
 
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE  
 
VALID 172222Z - 172315Z  
 
PROBABILITY OF WATCH ISSUANCE...40 PERCENT  
 
SUMMARY...A FEW INSTANCES OF SEVERE HAIL MAY ACCOMPANY MULTICELLS  
AND ISOLATED SUPERCELLS OVER THE NEXT FEW HOURS.  
 
DISCUSSION...WIDELY SCATTERED MULTICELLS AND SUPERCELLS CONTINUE TO  
TRAVERSE A WAA REGIME TO THE NORTH OF A WARM FRONT. GIVEN 50+ KTS OF  
EFFECTIVE BULK SHEAR NEAR THESE STORMS, SEVERE HAIL MAY STILL OCCUR  
WITH THE STRONGEST UPDRAFTS. NONETHELESS, THE SEVERE THREAT IS  
EXPECTED TO BE MORE ON THE SPARSE SIDE. CONDITIONS WILL CONTINUE TO  
BE MONITORED FOR THE NEED OF A WW ISSUANCE SHOULD STORMS EXPERIENCE  
A RAPID TREND IN INTENSIFICATION, OR BECOME MORE WIDESPREAD.  
 
..SQUITIERI/SMITH.. 05/17/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...DTX...APX...GRR...  
 
LAT...LON 44578656 44208345 43848271 43508249 43308277 43348346  
43608453 43868549 43998598 44188645 44578656  
 
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH  
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN  
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