WWCN11 CWTO 031507

SEVERE THUNDERSTORM WATCH

FOR SOUTHERN ONTARIO

ISSUED BY ENVIRONMENT CANADA

AT 11:07 A.M. EDT THURSDAY 3 JULY 2025.

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SEVERE THUNDERSTORM WATCH FOR:

=NEW= BELLEVILLE - QUINTE WEST - EASTERN NORTHUMBERLAND COUNTY

=NEW= NAPANEE - CONSECON

=NEW= KINGSTON - ODESSA - FRONTENAC ISLANDS

=NEW= STIRLING - TWEED - SOUTH FRONTENAC

=NEW= BROCKVILLE - LEEDS AND GRENVILLE

=NEW= PRESCOTT AND RUSSELL

=NEW= CORNWALL - MORRISBURG.



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==DISCUSSION==



CONDITIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF SEVERE 

THUNDERSTORMS THAT MAY BE CAPABLE OF PRODUCING STRONG WIND GUSTS AND 

LARGE HAIL.



WHAT: 

WIND GUSTS UP TO 90 KM/H. 

HAIL UP TO 2 CM. 



WHEN: 

THIS AFTERNOON AND EARLY THIS EVENING. 



ADDITIONAL INFORMATION: 

ISOLATED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON. THESE 

THUNDERSTORMS ARE EXPECTED TO MOVE SOUTH OF THE AREA EARLY THIS 

EVENING.



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

INJURES CANADIANS EVERY YEAR. 



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. 



EMERGENCY MANAGEMENT ONTARIO RECOMMENDS THAT YOU TAKE COVER 

IMMEDIATELY IF THREATENING WEATHER APPROACHES. 



PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY 

ENVIRONMENT CANADA. 



TO REPORT SEVERE WEATHER IN ONTARIO, SEND AN EMAIL TO 

ONSTORM(AT)EC.GC.CA OR POST REPORTS ON X USING (HASH)ONSTORM. 



FOR MORE INFORMATION: 

HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.



HTTP://WEATHER.GC.CA



END/OSPC