WUCN11 CWTO 192348
YELLOW WARNING - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 7:48 P.M. EDT TUESDAY 19 MAY 2026.
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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
      UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION
      LINDSAY - SOUTHERN KAWARTHA LAKES
      PETERBOROUGH CITY - LAKEFIELD - SOUTHERN PETERBOROUGH COUNTY.

YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:
      NEWMARKET - GEORGINA - NORTHERN YORK REGION
      FENELON FALLS - BALSAM LAKE PARK - NORTHERN KAWARTHA LAKES.

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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH

==DISCUSSION==

UPDATED OR ENDED BY 9:46 P.M. EDT.

AT 7:47 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WIND GUSTS AND UP 
TO QUARTER SIZE HAIL.

THUNDERSTORM LOCATION: GREENHURST-THURSTONIA TO LITTLE BRITAIN 

MOTION: MOVING QUICKLY TO THE EAST AT 80 KM/H 

HAZARDS: 
WIND: DAMAGING (90 - 110 KM/H) 
HAIL: UP TO QUARTER SIZE (UP TO 2.5 CM) 
A TORNADO IS ALSO POSSIBLE 

LOCATIONS IN THE PATH: 
LINDSAY 
OMEMEE 
CURVE LAKE 
LAKEFIELD 
PETERBOROUGH

LOCAL UTILITY OUTAGES ARE LIKELY. DAMAGE TO ROOFS, FENCES, SOFT 
SHELTERS OR TREES IS LIKELY. 

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