999  
WWCN11 CWWG 110238  
YELLOW WATCH - SEVERE THUNDERSTORM  
FOR SOUTHERN MANITOBA  
UPDATED BY ENVIRONMENT CANADA  
AT 9:38 P.M. CDT WEDNESDAY 10 JUNE 2026.  
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YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - FOR:  
BISSETT - VICTORIA BEACH - NOPIMING PROV. PARK - PINE FALLS  
WHITESHELL - LAC DU BONNET - PINAWA  
SPRAGUE - NORTHWEST ANGLE PROVINCIAL FOREST  
BERENS RIVER - LITTLE GRAND RAPIDS - BLOODVEIN - ATIKAKI.  
 
YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - ENDED FOR:  
CITY OF WINNIPEG  
STEINBACH - ST. ADOLPHE - EMERSON - VITA - RICHER  
SELKIRK - GIMLI - STONEWALL - WOODLANDS  
DUGALD - BEAUSEJOUR - GRAND BEACH  
PORTAGE LA PRAIRIE - HEADINGLEY - BRUNKILD - CARMAN  
MORDEN - WINKLER - ALTONA - MORRIS  
ARBORG - HECLA - FISHER RIVER - GYPSUMVILLE - ASHERN.  
 
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IMPACT LEVEL: HIGH  
FORECAST CONFIDENCE: MODERATE  
 
==DISCUSSION==  
 
A PASSING COLD FRONT WILL COMBINE WITH AN UNSTABLE AIRMASS RESULTING  
IN A FAVOURABLE ENVIRONMENT FOR THE DEVELOPMENT OF SEVERE  
THUNDERSTORMS OVER SOUTHEASTERN MANITOBA.  
 
THUNDERSTORMS ARE EXPECTED TO DEVELOP EARLY THIS AFTERNOON (1-3 PM  
LOCAL TIME) AND DIMINISH THIS EVENING.  
 
THE PRIMARY HAZARDS WITH THESE STORMS INCLUDE LARGE HAIL, STRONG  
WIND GUSTS AND HEAVY RAINFALL.  
 
HEAVY RAINFALL IS EXPECTED TO IMPACT ALREADY WATER LOGGED AREAS FROM  
LAST NIGHTS STORMS. SO FURTHER FLASH FLOODING WILL ALSO BE A RISK IN  
FLOOD PRONE AREAS.  
 
FAST-MOVING AND RAPIDLY RISING WATER CAN SWEEP VEHICLES AWAY AND  
DAMAGE INFRASTRUCTURE. WHEN THUNDER ROARS, GO INDOORS(EXCLAMATION  
MARK) LIGHTNING KILLS AND INJURES CANADIANS EVERY YEAR. SEVERE  
THUNDERSTORM WATCHES ARE ISSUED WHEN CONDITIONS ARE FAVOURABLE FOR  
THE DEVELOPMENT OF THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING HAIL,  
WIND OR RAIN.  
 
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY  
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, SEND AN EMAIL TO  
MBSTORM(AT)EC.GC.CA, CALL 1-800-239-0484 OR POST REPORTS ON X USING  
(HASH)MBSTORM.  
 
HTTP://WEATHER.GC.CA  
 
END/PASPC  
 
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