187  
ACUS11 KWNS 281919  
SWOMCD  
SPC MCD 281918  
TNZ000-MSZ000-MOZ000-ARZ000-282015-  
 
MESOSCALE DISCUSSION 0598  
NWS STORM PREDICTION CENTER NORMAN OK  
0218 PM CDT TUE APR 28 2026  
 
AREAS AFFECTED...NORTHEAST ARKANSAS INTO WEST TENNESSEE AND NORTH  
MISSISSIPPI  
 
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY  
 
VALID 281918Z - 282015Z  
 
PROBABILITY OF WATCH ISSUANCE...80 PERCENT  
 
SUMMARY...THE THREAT FOR SEVERE STORMS IS EXPECTED TO DEVELOP ACROSS  
WESTERN PARTS OF THE DISCUSSION AREA BY 21Z. ALL SEVERE-WEATHER  
HAZARDS APPEAR POSSIBLE. A WW IS LIKELY.  
 
DISCUSSION...SCATTERED STRONG TO OCCASIONALLY SEVERE STORMS ARE  
ONGOING ACROSS CENTRAL AND NORTHERN ARKANSAS AS OF 19Z, GENERALLY  
ALONG AND TO THE NORTH OF A WARM FRONT LIFTING NORTH THROUGH THE  
AREA. WHILE WIDESPREAD CLOUDS HAVE LIMITED DAYTIME HEATING OVER  
NORTHEAST AR INTO WESTERN TN, THE PRESENCE OF A VERY MOIST BOUNDARY  
LAYER IS RESULTING IN ESTIMATED MLCAPE OF 2500-3000 J/KG.  
 
LATEST MODEL DATA SUGGESTS THAT THE ONGOING STORMS WILL CONTINUE TO  
INTENSIFY AS THEY SPREAD EAST AND ENCOUNTER THE INCREASINGLY  
UNSTABLE AIR MASS IN PLACE ACROSS THE DISCUSSION AREA. WHILE THE  
CURRENT KNQA VWP INDICATES RELATIVELY WEAK WINDS IN THE LOWEST 4 KM,  
THE UPSTREAM KLZK VWP SHOWS MUCH STRONGER FLOW THROUGH THAT LAYER,  
WHICH WILL SPREAD EAST INTO THE AREA LATER THIS AFTERNOON. GIVEN THE  
DEGREE OF INSTABILITY IN PLACE, THE SETUP APPEARS SUPPORTIVE OF  
EMBEDDED SUPERCELL AND BOWING STRUCTURES CAPABLE OF ALL  
SEVERE-WEATHER HAZARDS.  
 
..MEAD/GUYER.. 04/28/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...PAH...MEG...  
 
LAT...LON 34479094 35479092 36079068 36468909 36388824 35588822  
34688878 34168927 34039040 34479094  
 
MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH  
MOST PROBABLE PEAK WIND GUST...65-80 MPH  
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN  
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