409  
ACUS11 KWNS 152317  
SWOMCD  
SPC MCD 152317  
AZZ000-CAZ000-160115-  
 
MESOSCALE DISCUSSION 1628  
NWS STORM PREDICTION CENTER NORMAN OK  
0617 PM CDT WED JUL 15 2026  
 
AREAS AFFECTED...PORTIONS OF CENTRAL AND SOUTHERN ARIZONA  
 
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY  
 
VALID 152317Z - 160115Z  
 
PROBABILITY OF WATCH ISSUANCE...5 PERCENT  
 
SUMMARY...SPORADIC STRONG TO SEVERE GUSTS ARE POSSIBLE WITH  
SCATTERED THUNDERSTORMS INTO THIS EVENING. ORGANIZATION POTENTIAL IS  
VERY LIMITED AND A WATCH IS UNLIKELY.  
 
DISCUSSION...AS OF 2310 UTC, REGIONAL RADAR IMAGERY SHOWERED  
SCATTERED TO NUMEROUS THUNDERSTORMS ONGOING OVER PORTIONS OF CENTRAL  
AND SOUTHERN AZ. OVER THE LAST 2 HOURS, STORM COVERAGE HAS SLOWLY  
INCREASED OVER THE NORTHWESTERN AND SOUTHEASTERN PORTIONS OF THE  
MOGOLLON RIM. WHILE VERY WARM SURFACE TEMPERATURES ARE PRESENT,  
BUOYANCY IS FAIRLY LIMITED OWING TO MODEST MOISTURE AND MID-LEVEL  
LAPSE RATES. STILL, IT REMAINS SUFFICIENT FOR OCCASIONAL STRONGER  
MULTICELL UPDRAFTS WITHIN THE WEAK EASTERLY FLOW ALOFT. THIS SHOULD  
KEEP STORM ORGANIZATION POTENTIAL VERY LIMITED. HOWEVER, DRY  
SUB-CLOUD LAYERS COULD SUPPORT SPORADIC SEVERE GUSTS WITH THE  
STRONGER DOWNDRAFTS.  
 
EXPECTATIONS ARE FOR STORM COVERAGE TO CONTINUE TO INCREASE FIRST  
OVER THE HIGHER TERRAIN OF CENTRAL AND SOUTHEAST AZ. EVENTUALLY  
THESE STORMS SHOULD SPREAD WESTWARD INTO THE LOWER DESERTS THIS  
EVENING WITH SOME DAMAGING GUSTS POTENTIAL. WHILE SOME SEVERE  
POTENTIAL IS POSSIBLE, THE LACK OF BROADER STORM ORGANIZATION AMID  
WEAK VERTICAL SHEAR AND MODEST BUOYANCY SHOULD PRECLUDE THE NEED FOR  
A WATCH.  
 
..LYONS/GUYER.. 07/15/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...TWC...FGZ...PSR...VEF...  
 
LAT...LON 31811048 32011195 32331292 32881370 33371421 34271424  
35031413 35211368 35101314 34961206 34481163 34291113  
34021046 32940985 32281012 31811048  
 
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
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