197  
ACUS11 KWNS 282226  
SWOMCD  
SPC MCD 282226  
TNZ000-KYZ000-MOZ000-ARZ000-290000-  
 
MESOSCALE DISCUSSION 0604  
NWS STORM PREDICTION CENTER NORMAN OK  
0526 PM CDT TUE APR 28 2026  
 
AREAS AFFECTED...EXTREME NORTHEAST ARKANSAS AND THE MISSOURI  
BOOTHEEL  
 
CONCERNING...TORNADO WATCH 174...  
 
VALID 282226Z - 290000Z  
 
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 174 CONTINUES.  
 
SUMMARY...A SUPERCELL MIGRATING ACROSS FAR SOUTHEAST MISSOURI AND  
NORTHEAST ARKANSAS MAY POSE A LOCALLY HIGHER SEVERE THREAT OVER THE  
NEXT 1-2 HOURS.  
 
DISCUSSION...SURFACE OBSERVATIONS ACROSS THE MS VALLEY SHOW A  
STATIONARY BOUNDARY/OUTFLOW DRAPED ACROSS NORTHERN AR INTO KY. A  
SUPERCELL WITH A HISTORY OF PRODUCING SEVERE HAIL AND GUSTS UP TO 70  
MPH IS APPROACHING THIS BOUNDARY FROM THE NORTHWEST ALONG THE  
EASTERN MO/AR BORDER. ALTHOUGH MRMS 50 DBZ ECHO TOPS DEPICT A RECENT  
WEAKENING TREND WITH THIS STORM, REGIONAL RADAR IMAGERY HAS RECENTLY  
BEGUN TO SAMPLE STRENGTHENING MID-LEVEL FLOW WITHIN THE STORM  
(THOUGH PRECISE FEATURE IDENTIFICATION IS DIFFICULT GIVEN THE  
STORM'S DISTANCE FROM THE NEAREST RDA). FURTHER INTENSIFICATION  
APPEARS POSSIBLE AS THE STORM REACHES THE BOUNDARY WHERE LOW-LEVEL  
SRH IS ENHANCED AND A MORE MOIST/BUOYANT AIR MASS RESIDES ON THE  
IMMEDIATE WARM SIDE. THIS MAY SUPPORT A LOCALIZED CORRIDOR OF HIGHER  
SEVERE HAIL, WIND, AND TORNADO POTENTIAL WITHIN THE NEXT 1-2 HOURS.  
 
..MOORE.. 04/28/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...PAH...MEG...  
 
LAT...LON 36058967 36099003 36279055 36439072 36639071 36759053  
36849028 36818940 36668909 36518911 36288919 36148941  
36058967  
 
MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH  
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN  
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