734  
ACUS11 KWNS 070549  
SWOMCD  
SPC MCD 070549  
MTZ000-070715-  
 
MESOSCALE DISCUSSION 2262  
NWS STORM PREDICTION CENTER NORMAN OK  
1249 AM CDT MON SEP 07 2026  
 
AREAS AFFECTED...PORTIONS OF NORTH-CENTRAL MONTANA  
 
CONCERNING...SEVERE THUNDERSTORM WATCH 662...  
 
VALID 070549Z - 070715Z  
 
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 662  
CONTINUES.  
 
SUMMARY...SEVERE HAIL AND GUSTS REMAIN POSSIBLE WITH SEVERAL  
SUPERCELLS MOVING ACROSS NORTH-CENTRAL MT THIS EVENING. STORMS  
SHOULD WEAKEN AS THEY MOVE INTO SOUTHERN CANADA LATER TONIGHT.  
 
DISCUSSION...A TRIO OF SUPERCELLS, SOME RELATIVELY INTENSE, ONGOING  
ACROSS PHILLIPS AND FERGUS COUNTIES IN NORTH-CENTRAL MT REMAIN  
CAPABLE OF SEVERE HAIL AND GUSTS THIS EVENING. RELATIVELY MOIST  
CONDITIONS WITH NORTHEASTERLY SURFACE WINDS ARE SUPPORTING MODERATE  
ELEVATED BUOYANCY WHICH WILL CONTINUE TO SUPPORT THESE STORMS AS  
THEY MOVE NORTHEAST AT 25-30 KT. DEEP-LAYER SHEAR OF 40-50 KT WILL  
CONTINUE TO FAVOR A SUPERCELL STORM MODE.  
 
AS THE BOUNDARY LAYER CONTINUES TO COOL, EFFECTIVE PARCELS WILL  
LIKELY BECOME MORE ELEVATED. THIS SHOULD GRADUALLY WEAKEN THE STORMS  
AS THEY APPROACH THE INTERNATIONAL BORDER. HOWEVER, THE ENVIRONMENT  
REMAINS SUPPORTIVE OF SEVERE STORMS FOR THE NEXT COUPLE OF HOURS.  
SEVERE HAIL (SOME APPROACHING 2 INCHES), AND SEVERE GUSTS ARE LIKELY  
GIVEN THE ORGANIZED STORM MODE AND FAVORABLE ENVIRONMENT.  
 
..LYONS.. 09/07/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
 
 
ATTN...WFO...GGW...TFX...  
 
LAT...LON 48700880 49020862 49080746 49030696 48930676 48680684  
48130716 47830754 47730777 47570799 47440833 47420851  
47460866 47500887 48210868 48700880  
 
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN  
 
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