982  
ACUS11 KWNS 211941  
SWOMCD  
SPC MCD 211940  
NYZ000-CTZ000-NJZ000-PAZ000-DEZ000-MDZ000-212115-  
 
MESOSCALE DISCUSSION 1694  
NWS STORM PREDICTION CENTER NORMAN OK  
0240 PM CDT TUE JUL 21 2026  
 
AREAS AFFECTED...EASTERN PENNSYLVANIA...NEW JERSEY...SOUTHEAST NEW  
YORK  
 
CONCERNING...TORNADO WATCH 507...  
 
VALID 211940Z - 212115Z  
 
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 507 CONTINUES.  
 
SUMMARY...THE SEVERE WEATHER THREAT WILL CONTINUE THROUGH THE  
AFTERNOON.  
 
DISCUSSION...IN THE NEAR TERM THE GREATEST TORNADO THREAT WILL BE  
ACROSS NORTHEAST NEW JERSEY INTO SOUTHEAST NEW YORK WHERE A  
SUPERCELL ALONG A WARM FRONT HAS CONTINUED TO EXHIBIT LOW-LEVEL  
ROTATION WITH SEVERAL BRIEF TORNADO REPORTS. THE DOWNSTREAM  
ENVIRONMENT REMAINS FAVORABLE AND SHOULD MAINTAIN SOME DAMAGING  
WIND/TORNADO THREAT FOR THE NEXT 1 TO 2 HOURS.  
 
ELSEWHERE, MID/UPPER LEVEL CLOUD COVER HAS SLOWED HEATING AND THUS  
STORM COVERAGE HAS REMAINED SOMEWHAT MUTED. HOWEVER, THE NEXT ROUND  
OF STORM DEVELOPMENT HAS BEGUN ACROSS SOUTHEAST PENNSYLVANIA. GIVEN  
CONTINUED FILTERED HEATING AND INCREASING ASCENT THROUGH THE DAY,  
EXPECT ADDITIONAL STORM DEVELOPMENT THROUGH THE AFTERNOON WITH A  
PRIMARY THREAT FOR DAMAGING WIND GUSTS.  
 
..BENTLEY.. 07/21/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...OKX...ALY...PHI...BGM...CTP...LWX...  
 
LAT...LON 39817737 40687656 41407541 41777387 41627304 41197274  
40807290 40407341 39657379 38997444 38697498 39067601  
39817737  
 
MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH  
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN  
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