159  
ACUS11 KWNS 261648  
SWOMCD  
SPC MCD 261648  
VAZ000-NCZ000-WVZ000-SCZ000-TNZ000-GAZ000-ALZ000-261845-  
 
MESOSCALE DISCUSSION 1453  
NWS STORM PREDICTION CENTER NORMAN OK  
1148 AM CDT THU JUN 26 2025  
 
AREAS AFFECTED...SOUTHERN APPALACHIANS INTO NORTHERN GEORGIA  
 
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE  
 
VALID 261648Z - 261845Z  
 
PROBABILITY OF WATCH ISSUANCE...40 PERCENT  
 
SUMMARY...SCATTERED THUNDERSTORMS CAPABLE OF DAMAGING WIND AND SOME  
INSTANCES OF SEVERE HAIL POSSIBLE THIS AFTERNOON.  
 
DISCUSSION...THUNDERSTORM ACTIVITY IS ONGOING THIS MORNING ACROSS  
PORTIONS OF EASTERN TENNESSEE AND WESTERN SOUTH CAROLINA, WITH  
OCCASIONAL SEVERE PULSES. TEMPERATURES HAVE WARMED INTO THE MID 80S  
TO 90S ACROSS THE CAROLINAS INTO GEORGIA AND EASTERN TENNESSEE, WITH  
DEW POINTS IN THE UPPER 60S TO 70S. CONTINUED HEATING UNDER SUNNY  
SKIES (OUTSIDE OF THE AREAS WITH CONVECTION) SHOULD YIELD FURTHER  
DESTABILIZATION AND MLCAPE AROUND 2000-3000 J/KG BY THE AFTERNOON.  
MORNING 12Z SOUNDING ANALYSIS INDICATES COOL MID-LEVELS, WITH MODEST  
MID-LEVEL LAPSE RATES. THOUGH FLOW ALOFT IS WEAK, MODERATE  
INSTABILITY AND STEEPENING LOW-LEVEL LAPSE WITH HEATING WILL ALLOW  
FOR POTENTIAL FOR WET DOWNBURSTS AND DAMAGING OUTFLOW WINDS. A FEW  
ISOLATED INSTANCES OF SEVERE HAIL WILL ALSO BE POSSIBLE, OWING TO  
STEEP LAPSE RATES. THIS AREA WILL BE MONITORED FOR WATCH POTENTIAL  
THROUGH THE AFTERNOON.  
 
..THORNTON/HART.. 06/26/2025  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...AKQ...LWX...RAH...RNK...RLX...GSP...MRX...FFC...  
BMX...  
 
LAT...LON 33658324 33348429 33308482 33518519 33818538 34228526  
34838478 36218303 36878212 37368145 37758054 38077982  
38177941 38177877 38017842 37827816 37577801 37377792  
37037815 36757885 36417954 36178008 36028034 35498090  
34778186 34208257 33658324  
 
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN  
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