WWCN11 CWWG 200715

SEVERE THUNDERSTORM WATCH

FOR SOUTHERN MANITOBA

UPDATED BY ENVIRONMENT CANADA

AT 2:15 A.M. CDT WEDNESDAY 20 AUGUST 2025.

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SEVERE THUNDERSTORM WATCH FOR:

=NEW= GRAND RAPIDS - WATERHEN

      SWAN RIVER - DUCK MOUNTAIN - PORCUPINE PROVINCIAL FOREST.



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==DISCUSSION==



CONDITIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF SEVERE 

THUNDERSTORMS THAT MAY BE CAPABLE OF PRODUCING STRONG WIND GUSTS, 

LARGE HAIL AND HEAVY RAIN.



A LARGE AREA OF THUNDERSTORMS HAS DEVELOPED OVER WEST CENTRAL 

MANITOBA AND WILL PERSIST THROUGH THE MORNING. SOME OF THESE 

THUNDERSTORMS MAY BECOME SEVERE.



WHEN THUNDER ROARS, GO INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND 

INJURES CANADIANS EVERY YEAR. 



HEAVY RAIN CAN CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO 

VISIBILITY. 



STRONG WIND GUSTS CAN DAMAGE TREES, BUILDINGS AND OVERTURN VEHICLES. 



LARGE HAIL CAN CAUSE SIGNIFICANT DAMAGE AND INJURY. 



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