WWCN11 CWTO 200102
YELLOW WATCH - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 9:02 P.M. EDT TUESDAY 19 MAY 2026.
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YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - FOR:
      PETERBOROUGH CITY - LAKEFIELD - SOUTHERN PETERBOROUGH COUNTY
      STIRLING - TWEED - SOUTH FRONTENAC
      KALADAR - BANNOCKBURN - BON ECHO PARK
      WESTPORT - CHARLESTON LAKE
      MERRICKVILLE-WOLFORD - KEMPTVILLE
      CITY OF OTTAWA
      GATINEAU
      PRESCOTT AND RUSSELL
      WINCHESTER - NEWINGTON
      MAXVILLE - ALEXANDRIA
      SMITHS FALLS - LANARK - SHARBOT LAKE.

YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - ENDED FOR:
      UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION
      LINDSAY - SOUTHERN KAWARTHA LAKES
      APSLEY - WOODVIEW - NORTHERN PETERBOROUGH COUNTY
      BANCROFT - HASTINGS HIGHLANDS - DENBIGH
      BARRY'S BAY - KILLALOE
      RENFREW - ARNPRIOR - CALABOGIE.

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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH

==DISCUSSION==

CONDITIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF SEVERE 
THUNDERSTORMS THAT MAY BE CAPABLE OF PRODUCING STRONG WIND GUSTS AND 
LARGE HAIL.

WHAT: 
WINDS GUSTING TO 90 KM/H. 
HAIL UP TO QUARTER SIZED. 

WHEN: 
CONTINUING UNTIL LATE THIS EVENING.

LOCAL UTILITY OUTAGES ARE POSSIBLE. DAMAGE TO ROOFS, FENCES, 
BRANCHES OR SOFT SHELTERS IS POSSIBLE. WHEN THUNDER ROARS, GO 
INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND INJURES CANADIANS 
EVERY YEAR. 

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

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

HTTP://WEATHER.GC.CA

END/OSPC