WWCN11 CWTO 242347
SEVERE THUNDERSTORM WATCH
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 7:47 P.M. EDT WEDNESDAY 24 JULY 2024.
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SEVERE THUNDERSTORM WATCH FOR:
      BANCROFT - HASTINGS HIGHLANDS - DENBIGH
      MERRICKVILLE-WOLFORD - KEMPTVILLE
      CITY OF OTTAWA
      GATINEAU
      PRESCOTT AND RUSSELL
      CORNWALL - MORRISBURG
      SMITHS FALLS - LANARK - SHARBOT LAKE
      RENFREW - PEMBROKE - BARRY'S BAY.

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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.

HAZARDS: 
STRONG WINDS GUSTING UP TO 90 KM/H 
TORRENTIAL DOWNPOURS WITH 50 MM FALLING WITHIN AN HOUR 
NICKEL SIZED HAIL 
RISK OF A TORNADO 

TIMING: 
CONTINUING THIS EVENING. 

DISCUSSION: 
THUNDERSTORMS WILL WEAKEN LATER THIS EVENING AS A COLD FRONT PASSES.

STRONG WIND GUSTS CAN TOSS LOOSE OBJECTS, DAMAGE WEAK BUILDINGS, 
BREAK BRANCHES OFF TREES AND OVERTURN LARGE VEHICLES. HEAVY 
DOWNPOURS CAN CAUSE FLASH FLOODS AND WATER POOLING ON ROADS. 
WATER-RELATED ACTIVITIES MAY BE UNSAFE DUE TO VIOLENT AND SUDDEN 
GUSTS OF WIND OVER BODIES OF WATER. LIGHTNING KILLS AND INJURES 
CANADIANS EVERY YEAR. REMEMBER, WHEN THUNDER ROARS, GO 
INDOORS(EXCLAMATION MARK) 

SEVERE THUNDERSTORM WATCHES ARE ISSUED WHEN ATMOSPHERIC CONDITIONS 
ARE FAVOURABLE FOR THE DEVELOPMENT OF THUNDERSTORMS THAT COULD 
PRODUCE ONE OR MORE OF THE FOLLOWING: LARGE HAIL, DAMAGING WINDS, 
TORRENTIAL RAINFALL. 

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 TWEET REPORTS USING (HASH)ONSTORM. TO REPORT 
SEVERE WEATHER IN GATINEAU, SEND AN EMAIL TO ONSTORM(AT)EC.GC.CA OR 
TWEET REPORTS USING (HASH)QCSTORM. 

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

HTTP://WEATHER.GC.CA

END/OSPC