651  
ACUS11 KWNS 160226  
SWOMCD  
SPC MCD 160226  
ILZ000-WIZ000-IAZ000-160400-  
 
MESOSCALE DISCUSSION 0460  
NWS STORM PREDICTION CENTER NORMAN OK  
0926 PM CDT WED APR 15 2026  
 
AREAS AFFECTED...NORTHERN AND WESTERN ILLINOIS...INTO FAR SOUTHEAST  
WISCONSIN  
 
CONCERNING...SEVERE THUNDERSTORM WATCH 125...  
 
VALID 160226Z - 160400Z  
 
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 125  
CONTINUES.  
 
SUMMARY...ISOLATED SEVERE GUSTS AND PERHAPS A TORNADO WILL REMAIN  
POSSIBLE THIS EVENING.  
 
DISCUSSION...TWO CLUSTER OF STORMS REMAINS ONGOING ACROSS WW125.  
RADAR TRENDS WITHIN THE LINE AND FARTHER SOUTH SHOW GENERALLY  
WEAKENING CORES. THE SURFACE IS COOLING, BUT THE ENVIRONMENT REMAINS  
SOMEWHAT UNSTABLE AND MODERATELY SHEARED. THE EXPECTATION IS FOR  
CONVECTION TO SLOWLY WEAKEN THROUGH THIS EVENING. HOWEVER,  
INTERMITTENT RE-INTENSIFICATION OF INDIVIDUAL CELLS WITHIN THE  
OVERALL LINE IS POSSIBLE FOR THE NEXT COUPLE OF HOURS. THIS COULD  
SUPPORT ISOLATED DAMAGING GUSTS OR A TORNADO OR TWO. THIS APPEARS  
MOST LIKELY WITH SOUTHERN PORTIONS OF THE CLUSTER WHERE STORMS ARE  
SLIGHTLY MORE ROBUST. THUS, THE SEVERE RISK CONTINUES ACROSS WW125.  
 
..LYONS.. 04/16/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...LOT...ILX...MKX...LSX...DVN...  
 
LAT...LON 40229115 41789028 42328900 43268742 43118703 42658711  
41848783 40268976 40078997 40009014 40229115  
 
MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH  
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN  
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