913  
WWCN03 CYTR 120006  
WEATHER BULLETIN FOR 17 WING CFB WINNIPEG PREPARED BY THE JOINT  
METEOROLOGICAL CENTRE AT 7:06 PM CDT SUNDAY 11 MAY 2025.  
 
LOCATION: 17 WING CFB WINNIPEG (CYWG)  
 
TYPE: THUNDERSTORM ADVISORY IN EFFECT  
DESCRIPTION: THUNDERSTORMS WITH THE POTENTIAL FOR CLOUD TO GROUND  
LIGHTNING ARE EXPECTED WITHIN 30 NM  
VALID: UNTIL 12/1200Z (UNTIL 12/0700 CDT)  
 
TYPE: THUNDERSTORM WARNING IN EFFECT  
DESCRIPTION: THUNDERSTORMS WITH THE POTENTIAL FOR CLOUD TO GROUND  
LIGHTNING ARE EXPECTED WITHIN 5 NM  
VALID: 12/0030Z TO 12/0400Z (11/1930 CDT TO 11/2300 CDT)  
 
COMMENTS:  
A FRONTAL BOUNDARY HAS SET UP OVER SOUTHERN MANITOBA, ALLOWING FOR  
THUNDERSTORM DEVELOPMENT WITHIN 30 NM OF THE BASE. THE ENVIRONMENT  
WILL REMAIN FAVOURABLE FOR FURTHER THUNDERSTORM DEVELOPMENT ACROSS  
THE REGION THIS EVENING AND OVERNIGHT. FURTHERMORE, AS THE FRONTAL  
BOUNDARY TRACKS NORTHEAST, LIGHTNING WITHIN 5 NM OF THE BASE IS  
EXPECTED THIS EVENING.  
 
THESE THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE HEAVY DOWNPOURS, UP  
TO PEA-SIZED HAIL, AND STRONG WIND GUSTS UP TO 40 KNOTS.  
 
NEXT UPDATE: THIS BULLETIN WILL BE UPDATED BY 12/0400Z (11/2300 CDT)  
 
END/JMC  
 
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