WUCN11 CWTO 091848

YELLOW WARNING - SEVERE THUNDERSTORM

FOR SOUTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 2:48 P.M. EDT THURSDAY 9 JULY 2026.

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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

=NEW= BROCKVILLE - PRESCOTT

      WESTPORT - CHARLESTON LAKE

      MERRICKVILLE-WOLFORD - KEMPTVILLE

      MORRISBURG - LONG SAULT

      WINCHESTER - NEWINGTON.



YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:

      TAMWORTH - SYDENHAM - SOUTH FRONTENAC

      SMITHS FALLS - PERTH - EASTERN LANARK COUNTY.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 4:47 P.M. EDT.



AT 2:48 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A 

SEVERE THUNDERSTORM CAPABLE OF PRODUCING STRONG WIND GUSTS AND HEAVY 

RAIN.



THUNDERSTORM LOCATION: 

ELGIN 

NORTH AUGUSTA 

MORRISBURG 



MOTION: 

MOVING EAST AT 25 KM/H 



HAZARDS: 

WIND GUSTS UP TO 90 KM/H 

RAINFALL UP TO 50 MM 



LOCATIONS IN THE PATH: 

WILLIAMSBURG 

SPENCERVILLE 

ATHENS 

LYNDHURST 

IROQUOIS 

PRESCOTT



LOCAL UTILITY OUTAGES ARE LIKELY. DAMAGE TO ROOFS, FENCES, SOFT 

SHELTERS OR TREES IS LIKELY. HEAVY RAIN MAY CAUSE FLASH FLOODING AND 

SIGNIFICANT REDUCTIONS TO VISIBILITY. WHEN THUNDER ROARS, GO 

INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND INJURES CANADIANS 

EVERY YEAR. DON'T DRIVE THROUGH FLOODED ROADWAYS. 



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