543  
ACUS11 KWNS 222035  
SWOMCD  
SPC MCD 222034  
UTZ000-IDZ000-222230-  
 
MESOSCALE DISCUSSION 2325  
NWS STORM PREDICTION CENTER NORMAN OK  
0334 PM CDT TUE SEP 22 2026  
 
AREAS AFFECTED...NORTHERN UTAH INTO SOUTHEAST IDAHO  
 
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY  
 
VALID 222034Z - 222230Z  
 
PROBABILITY OF WATCH ISSUANCE...5 PERCENT  
 
SUMMARY...MARGINALLY SEVERE HAIL AND ISOLATED SEVERE GUSTS ARE  
POSSIBLE THIS AFTERNOON. OVERALL SEVERE COVERAGE SHOULD REMAIN TOO  
LIMITED FOR A WATCH.  
 
DISCUSSION...A COMPACT UPPER LOW IS EVIDENT ON WATER VAPOR IMAGERY  
ALONG NORTHERN PORTIONS OF THE UTAH/NEVADA BORDER. LIFT FROM THIS  
FEATURE IS PROMOTING SCATTERED CONVECTION ACROSS NORTHERN/EASTERN  
PORTIONS OF THE GREAT BASIN THIS AFTERNOON. SOME ACTIVITY NEAR THE  
GREAT SALT LAKE HAS INTENSIFIED DURING THE LAST HALF HOUR. WITH  
ADDITIONAL HEATING, OTHER STORMS MAY SIMILARLY INCREASE IN STRENGTH.  
THE STRONGEST SHEAR EXISTS IN EASTERN UTAH/WESTERN COLORADO WHERE  
THE MID-LEVEL JET CORE IS LOCATED. HOWEVER, THESE AREAS HAVE  
REMAINED COOLER/LESS UNSTABLE. SEVERE POTENTIAL WILL LIKELY BE  
MAXIMIZED ALONG THE NORTHWEST PERIPHERY OF THE MID-LEVEL JET WHERE  
MLCAPE HAS RISEN TO 500-750 J/KG. TEMPERATURES NEAR THE UPPER LOW  
ARE COLD ENOUGH TO SUPPORT MARGINALLY SEVERE HAIL DESPITE WEAKER  
SHEAR. ISOLATED SEVERE GUSTS ARE ALSO POSSIBLE.  
 
..WENDT/MOSIER.. 09/22/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...SLC...PIH...  
 
LAT...LON 39891274 39921351 40691376 41561318 42441190 42471152  
42181130 41251136 40121240 39891274  
 
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN  
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