758  
ACUS11 KWNS 102112  
SWOMCD  
SPC MCD 102112  
AZZ000-CAZ000-102315-  
 
MESOSCALE DISCUSSION 2357  
NWS STORM PREDICTION CENTER NORMAN OK  
0412 PM CDT SAT OCT 10 2026  
 
AREAS AFFECTED...SOUTHERN CALIFORNIA AND THE LOWER COLORADO RIVER  
VALLEY INTO SOUTH-CENTRAL ARIZONA  
 
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY  
 
VALID 102112Z - 102315Z  
 
PROBABILITY OF WATCH ISSUANCE...5 PERCENT  
 
SUMMARY...SCATTERED THUNDERSTORMS WILL CONTINUE TO LIFT NORTHWARD  
INTO SOUTHERN CA AND AZ THROUGH LATE THIS AFTERNOON. A FEW STRONG TO  
SEVERE WIND GUSTS WILL BE POSSIBLE.  
 
DISCUSSION...THUNDERSTORM COVERAGE CONTINUES TO INCREASE ACROSS  
NORTHERN BAJA CA THIS AFTERNOON WITH THE APPROACH OF TS RACHEL. LOW  
TO MID-LEVEL MOISTURE ADVECTION HAS SLOWLY BEEN INCREASING NORTHWARD  
THROUGHOUT THE DAY, AND WILL PERSIST THROUGH THIS EVENING, YIELDING  
~1000 J/KG OF MLCAPE. IN ADDITION, KINEMATIC FIELDS ARE BECOMING  
MORE FAVORABLE FOR SOME THUNDERSTORM ORGANIZATION ACROSS THIS  
REGION. THE LATEST MESOSCALE ANALYSIS SUGGESTS EFFECTIVE BULK SHEAR  
IS BEGINNING TO APPROACH 45-50 KT, ALONG WITH THE YUX VAD PROFILE.  
DCAPE ~1100 J/KG AND STORM CELL MERGERS COULD SUPPORT SEVERE WIND  
GUSTS UP TO 60 MPH, THOUGH LIMITED SEVERE COVERAGE DOES NOT WARRANT  
A THUNDERSTORM WATCH AT THIS TIME.  
 
..BARNES/GLEASON.. 10/10/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...TWC...FGZ...PSR...VEF...SGX...  
 
LAT...LON 32501483 32011336 31741243 31961194 32861151 33631111  
34391161 34791251 35101349 34991466 34811554 32531694  
32501483  
 
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH  
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH  
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